Revert "mmc: bfin_sdh: fix dma_desc_array build error"

This reverts commit cba83fe1f80525d27952c36a4077b3f9893ce062.
Revert "PM / Sleep: Replace mutex_[un]lock(&pm_mutex) with [un]lock_system_sleep()"

This reverts commit 8bf58f74b22380d400e35dd0a8c0fef04246c2e4.