Merge changes Ie4f7c765,I17101246,Ic9b68111 into msm-3.4

* changes:
  Revert "msm: board-8974: Switch from stub to krait regulator for 8841 S5-S8"
  arm/dt: 8974: Fix IOMMU context bank interrupts
  mmc: core: reinitalize the eMMC card always on resume