Merge branch 'github/hikey960-v2.5/update' into update-bootloader

Big transition to upstream edk2 code.

This merges the aosp/master code with a4d118e0b9b5 but merges
such that the tree should be identical with the a4d118e0b9b5
side of the merge.

Signed-off-by: John Stultz <john.stultz@linaro.org>

Change-Id: I2bc9700c15ee79a734ec4930df6f40fbad70c4cf