Merge changes I3236496a,I579030b3,I428cedee into msm-3.0

* changes:
  mmc: msm_sdcc: don't call udelay() from msmsdcc_delay()
  msm: msm_sdcc: defer device resume until next transfer request comes
  mmc: block: claim host in mmc_blk_set_blksize() only if required