Use TOP instead of ANDROID_BUILD_TOP

Fix spelling issues in keys.conf

Change-Id: Ib90b3041af5ef68f30f4ab78c768ad225987ef2d

This reverts commit 1446e714

Hidden dependency has been resolved.

Change-Id: Ia535c0b9468ea5f705dff9813186a7fa8bab84ae

This reverts commit 22fc0410

Change-Id: I2d91b1262e8d0e82a21ea7c5333b1e86f3ed9bee

Support the inseretion of the public key from pem
files into the mac_permissions.xml file at build
time.

Change-Id: Ia42b6cba39bf93723ed3fb85236eb8f80a08962a