Correct checkpatch findings in uefi service

UEFI service has a huge amount of checkpatch findings. This commit
eliminates them before the implementation of the new feature is
started.

Change-Id: I211c52339660cd9b0d906c52669095df322bf4aa
Signed-off-by: Gabor Toth <gabor.toth2@arm.com>
18 files changed