SWDEV-432174 - Change the fillBuffer kernel

- Add the new fillBuffer kernel, which allows to launch a limited
number of workgroups for memory fill operation
- Switch fill memory to 16 bytes write by default
- Allow to limit the workgroups with DEBUG_CLR_LIMIT_BLIT_WG

Change-Id: Ibad1822f2d42b2fc71bcfc1917c31409c0623e8e


[ROCm/clr commit: f1dc81f427]

projects/clr/rocclr/device/rocm/rocsettings.cpp

@@ -96,6 +96,7 @@ Settings::Settings() {
 
   host_hdp_flush_ = true;
   gwsInitSupported_ = true;
+  limit_blit_wg_ = 16;
 }
 
 // ================================================================================================