drm/xe/bmg: Some LNL workarounds also apply to BMG

Enable a couple of existing workarounds for a new platform.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240410002646.3002394-3-John.C.Harrison@Intel.com