Revert "msm: qdsp6v2: Deleting kernel driver from arch/arm/mach-msm/qdsp6v2"

This reverts commit bfbd3f6bb3e0214140c63fe0cb1a092dcdba14f8.
Revert "msm: Remove old unused sdio related code"

This reverts commit 3aef75517baa20e14dcd931292f1786086651e44.
Revert "msm: qdsp6v2: Deleting kernel driver from arch/arm/mach-msm"

This reverts commit 7f7724fee424f304cc5de3503f31599f049d4e8d.
qdsp6v2: fixup headers (qdsp5v2 doesn't exist anymore)