scsi: ufs: ignore unavailability of VCCQ for bActiveICCLevel setting

VCCQ rail is optional for removable UFS card and also most of the
vendors don't use this rail for embedded UFS devices as well. So
it is normal that VCCQ rail may not be provided for given platform.

This change ignores the unavailability of VCCQ rail for bActiveICCLevel
setting.

Change-Id: Ia9a4e0c65c00b551242f6adbd463e264a1777991
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>