mmc: sdhci-msm: Put platform suspend in late suspend list

Since there is no longer a parent child relation between the platform
sdhc device and the sdhc card, there is a possibility that the mmc card
suspend can be executed after sdhc platform suspend is done. This can
happen if async suspend of mmc card is enabled. Suspending of mmc card
requires platform device to be on and platform device suspend should
occur after mmc card suspend. To ensure this ordering in system suspend
case, let the card suspend in the regular suspend phase and make the
platform device suspend in the late suspend phase of system suspend.

Change-Id: I092056bf4099c09fcb4bd12695367f9d02ae9776
Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>