common: Reduce the image header to 20MB

The 1GB image is too huge to be flashed by fastboot.
Only dd the first 20MB which contains FAT file system
informations.

Change-Id: Idacbf917ae090d51f038cc8c65889d06813ac2b6
Merge "common: Reduce the image header to 20MB"
Revert "usb: Support multi USB transfer mode."

This reverts commit 3fa908b466bbb553baa4cd089b9249c5c4294ba3.

Change-Id: Ib0e07476905340e5b6612408a643f14ea004186f
Merge "Revert "usb: Support multi USB transfer mode.""
qcom: Fix /data/media permissions.

Change /data/media permissions from 0775 to 0770.

Change-Id: I730da7afff782ce0eb2511124f986da9b8c028a9
CRs-Fixed: 507516
Merge "qcom: Fix /data/media permissions."