ANDROID: GKI: Adjust symbol lists after RPMH removed from gki_defconfig

Since QCOM_RPMh is no longer built-in, remove it's symbols from
the symbol lists

Bug: 161478631
Bug: 161128971
Signed-off-by: Todd Kjos <tkjos@google.com>
Change-Id: I8f8179148e75a9b72d279a2575aac73f324effb2