powerpc/ci: Use GCC 8.1 as the 'old' compiler

The korg 5.5.0 compiler is getting old and increasingly fails to build
code that newer compilers accept.

There are also patches on the list to bump the minimum up to v8.1, which
seems to have consensus. So v8.1 will become the new minimum soon
anyway.

Signed-off-by: Michael Ellerman <[email protected]>

Author: mpe

.github/workflows/powerpc-extrawarn.yml

@@ -12,12 +12,12 @@ jobs:
     strategy:
       matrix:
         defconfig: [ppc64, corenet64_smp, pmac32, ppc44x, mpc885_ads, corenet32_smp]
-        image: [fedora-40, korg-5.5.0]
+        image: [fedora-40, korg-8.1.0]
         subarch: [ppc64]
         include:
           - subarch: ppc64le
             defconfig: ppc64le
-            image: korg-5.5.0
+            image: korg-8.1.0
           - subarch: ppc64le
             defconfig: ppc64le
             image: fedora-40

.github/workflows/powerpc-kernel+qemu.yml

@@ -26,45 +26,45 @@ jobs:
     strategy:
       matrix:
         defconfig: [ppc64_defconfig, mpc885_ads_defconfig]
-        image: [fedora-40, korg-5.5.0]
+        image: [fedora-40, korg-8.1.0]
         include:
           # ppc64le_guest_defconfig
           - subarch: ppc64le
             defconfig: ppc64le_guest_defconfig
             image: fedora-40
           - subarch: ppc64le
             defconfig: ppc64le_guest_defconfig
-            image: korg-5.5.0
+            image: korg-8.1.0
 
           # ppc44x
           - defconfig: ppc44x_defconfig
             merge_config: /linux/arch/powerpc/configs/ppc44x-qemu.config
             image: fedora-40
           - defconfig: ppc44x_defconfig
             merge_config: /linux/arch/powerpc/configs/ppc44x-qemu.config
-            image: korg-5.5.0
+            image: korg-8.1.0
 
           # corenet64_smp
           - defconfig: corenet64_smp_defconfig
             image: fedora-40
           - defconfig: corenet64_smp_defconfig
-            image: korg-5.5.0
+            image: korg-8.1.0
 
           # g5
           - defconfig: g5_defconfig
             merge_config: /linux/arch/powerpc/configs/g5-qemu.config
             image: fedora-40
           - defconfig: g5_defconfig
             merge_config: /linux/arch/powerpc/configs/g5-qemu.config
-            image: korg-5.5.0
+            image: korg-8.1.0
 
           # pmac32
           - defconfig: pmac32_defconfig
             merge_config: /linux/arch/powerpc/configs/pmac32-qemu.config
             image: fedora-40
           - defconfig: pmac32_defconfig
             merge_config: /linux/arch/powerpc/configs/pmac32-qemu.config
-            image: korg-5.5.0
+            image: korg-8.1.0
 
           - defconfig: corenet32_smp_defconfig
             image: fedora-40
@@ -129,44 +129,44 @@ jobs:
             machine_2: pseries+p9+tcg
             packages: qemu-system-ppc64
             rootfs: ppc64le-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
           - defconfig: ppc64le_guest_defconfig
             machine: powernv+p8+tcg
             machine_2: powernv+p9+tcg
             packages: qemu-system-ppc64
             rootfs: ppc64le-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
           - defconfig: ppc44x_defconfig
             machine: 44x
             packages: qemu-system-ppc
             rootfs: ppc-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
           - defconfig: corenet64_smp_defconfig
             machine: ppc64e
             machine_2: ppc64e+compat
             packages: qemu-system-ppc64
             rootfs: ppc64-novsx-rootfs.cpio.gz ppc-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
           - defconfig: g5_defconfig
             machine: g5
             packages: qemu-system-ppc64 openbios-ppc
             rootfs: ppc64-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
           - defconfig: pmac32_defconfig
             machine: mac99
             packages: qemu-system-ppc openbios-ppc
             rootfs: ppc-rootfs.cpio.gz
-            old-image: korg-5.5.0
+            old-image: korg-8.1.0
             new-image: fedora-40
 
     steps: