drm/xe: Remove useless mem_access during probe

drm/xe: Remove useless mem_access during probe

xe_pm_init is the very last thing during the xe_pci_probe(),
hence these protections are useless from the point of view
of ensuring that the device is awake.

Let's remove it so we continue towards the goal of killing
xe_device_mem_access.

v2: Adding more cases
v3: Provide a separate fix for xe_tile_init_noalloc return (Matt)
    Adding a new case where display HDCP init calls which
    are also called at display probe time.

Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240417203952.25503-5-rodrigo.vivi@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>