CVE-2025-37826 scsi: ufs: core: Add NULL check in ufshcd_mcq_compl_pending_transfer()

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Add NULL check in ufshcdmcqcomplpendingtransfer Add a NULL check for the returned hwq pointer by ufshcdmcqreqtohwq. This is similar to the fix in commit 74736103fb41 "scsi: ufs: core: Fix ufshcdabortone racing...