soc: silabs: siwx91x: unique place for sys clock tick definition

This patch put in the same place the default value for
SYS_CLOCK_TICKS_PER_SEC. It also apply the sleeptimer clock frequency
when sleeptimer is used for sys clock.

Signed-off-by: Martin Hoff <[email protected]>

Author: Martinhoff-maker

soc/silabs/silabs_siwx91x/Kconfig.defconfig

@@ -10,9 +10,11 @@ configdefault SYS_CLOCK_HW_CYCLES_PER_SEC
 	default $(dt_node_int_prop_int,/cpus/cpu@0,clock-frequency) if CORTEX_M_SYSTICK
 	default 32768
 
+# WiseConnect create threads with realtime priority. Default (10kHz) clock tick
+# prevent proper use of the system with these threads.
 configdefault SYS_CLOCK_TICKS_PER_SEC
 	default 128 if !TICKLESS_KERNEL && SILABS_SLEEPTIMER_TIMER
-	default 1024 if SILABS_SLEEPTIMER_TIMER
+	default 1024 if SILABS_SLEEPTIMER_TIMER || SILABS_SIWX91X_NWP
 
 configdefault UART_NS16550_DW8250_DW_APB
 	default y
@@ -35,11 +37,6 @@ endif # PM_DEVICE
 
 if SILABS_SIWX91X_NWP
 
-# WiseConnect create threads with realtime priority. Default (10kHz) clock tick
-# prevent proper use of the system with these threads.
-config SYS_CLOCK_TICKS_PER_SEC
-	default 1024
-
 # Wiseconnect needs more than 1024 bytes of main stack size to initialize
 # (especially with PM)
 configdefault MAIN_STACK_SIZE