msm7x27a-common: we don't need mheap shit anymore

Change-Id: Ia43a04f82e5e1ce0efb09131ffc8d43b82a0a9d4
msm7x27a-common: Add support for mounting usb disks

Change-Id: I30c3023ea57c179b339428145253b46d44331276
msm7x27a-common: ignore persist-lg and mpt partitions in recovery

Change-Id: Ib2d143315d98453753796d66bf05364ba973993f