bindings: Add snapshot of bindings with GPL-2.0 or BSD-2-Clause license

Add snapshot of the device-tree bindings' YAML files that has
GPL-2.0 or BSD-2-Clause license. The snapshot is taken from
Android Common Kernel's android-mainline branch as of commit-id
<b41e0f12> (ANDROID: update abi_gki_aarch64.xml for 5.2-rc5).

Change-Id: I03c75ed9aeec161dac792e18f5ab991a94de6dce