mmc: core: Send SD card initialization sequence in deferred resume path

During suspend the SD card power is removed. With deferred resume
feature enabled, during resume the SD card power is turned on; however,
the full SD card initialization sequence is missing. As a result, the
first SD card access fails with command timeouts. Add SD card
initialization to the deferred resume path so that the SD card is
initialized to fully operational state.

Change-Id: I85e02aa78016644432e694bcbc009869035d0b58
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>