Merge "PDL: Move documentation into new tools/pdl" am: 786c01f9 am: 1cbc8316

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2073792



Change-Id: I36f37d125bae2b8c632a996d2709d1d075cbb7e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>