rnndb: Add register fields for msm/hdmi HDCP support

This patch adds the field description for HDMI HDCP registers.

Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>
a3xx: add RGTC formats

Found through brute force. There were a few other id's that matched
RGTC1_UNORM, but this one made the most sense due to its numerical
proximity.