drm/xe: Introduce the CONFIG_DRM_XE_WERROR
Now that we have a clean build with the build of xe.mod.o with the make M=drivers/gpu/drm/xe we can have the helper of the compiler to void pushing any warning up.
And also without depending on i915 build which is disabled in my xe environment.
Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com