scsi: ufs: core: mcq: Use ufshcd_rmwl() instead of open-coding it

scsi: ufs: core: mcq: Use ufshcd_rmwl() instead of open-coding it

Currently, ufshcd_mcq_enable_esi() manually implements a
read-modify-write sequence using ufshcd_readl() and ufshcd_writel().
It also utilizes a hardcoded magic number (0x2) for the enable bit.

Use ufshcd_rmwl() helper, replace the magic number with the
ESI_ENABLE macro to improve code readability.

No functional change intended.

Signed-off-by: vamshi gajjela <vamshigajjela@google.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251211133227.4159394-1-vamshigajjela@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>