UPSTREAM: scsi: ufs: core: Drop loglevel of WriteBoost message

Commit '3b5f3c0d ("scsi: ufs: core: Tidy up WB configuration code")'
changed the log level of the write boost enable/disable notification from
debug to info. This results in a lot of noise in the kernel log during
normal operation.

Drop it back to debug level to avoid this.

Bug: 254441685
Link: https://lore.kernel.org/r/20220709000027.3929970-1-bjorn.andersson@linaro.org


Fixes: 3b5f3c0d ("scsi: ufs: core: Tidy up WB configuration code")
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 2ae57c99)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I02721806166750d014e55486508d2126cedd20f8