Fix U plane Offset regression on Chromium OS (#38)

Author: johnmach

Source/GmmLib/Texture/GmmTextureAlloc.cpp

@@ -344,17 +344,6 @@ bool GmmLib::GmmTextureCalc::ValidateTexInfo(GMM_TEXTURE_INFO * pTexInfo,
         return false;
     }
 
-    if(GmmIsPlanar(pTexInfo->Format))
-    {
-        if((!GmmIsReconstructableSurface(pTexInfo->Format)) && (pTexInfo->OffsetInfo.Plane.Y[GMM_PLANE_U] >= GMM_MAX_UV_PLANE_Y_OFFSET))
-        {
-            GMM_ASSERTDPF(0,
-                          "GmmLib::GmmTextureCalc::ValidateTexInfo:Y offset of U plane"
-                          "exceeds max HW U plane Y offset restriction.\r\n");
-            return false;
-        }
-    }
-
     GMM_DPF_EXIT;
     return true;
 }

Source/GmmLib/inc/External/Common/GmmConst.h

@@ -52,4 +52,3 @@ OTHER DEALINGS IN THE SOFTWARE.
 #define GMM_MEDIA_COMPRESSION_STATE_SIZE               (64)
 #define GMM_CLEAR_COLOR_FLOAT_SIZE                     (16)
 #define GMM_MAX_LCU_SIZE                                64  // Media Largest coding Unit
-#define GMM_MAX_UV_PLANE_Y_OFFSET                       GMM_KBYTE(16)  // RENDER_SURFACE_STATE structure only have 0:13 bit to write Y Offset for U or UV Plan(max value is <16384)