FROMGIT: drm/i915/guc: Don't use pr_err when not necessary

A bunch of code was copy/pasted using pr_err as the default way to
report errors. However, drm_err is significantly more useful in
identifying where the error came from. So update the code to use that
instead.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220715004028.2126239-1-John.C.Harrison@Intel.com
(cherry picked from commit a4a43070
 https://anongit.freedesktop.org/git/drm-intel.git

 drm-intel-next)

BUG=b:242077859
TEST=i915 driver loaded successfully

Change-Id: I004e7ef19bbb9cdb45ddf20403deccd8d8519ac6
Signed-off-by: Mohanram Meenakshisundaram <mohanram.meenakshisundaram@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/kernel/+/3910569


Reviewed-by: Drew Davenport <ddavenport@chromium.org>
Reviewed-by: Rajat Jain <rajatja@google.com>
Commit-Queue: Rajat Jain <rajatja@google.com>
Tested-by: Rajat Jain <rajatja@google.com>