codec2: add HDR format info

HDR format info can be specified to aid video/image encoders to prepare
for encoding a specific HDR format. Typically this information comes with
the first frame, but this info allows it to be communicated before the
component starts.

Bug: 188585352
Change-Id: I00d4049d3b9067b7f6048949bcac277a56a1602d
(cherry picked from commit 04f67226)
Merged-In: I00d4049d3b9067b7f6048949bcac277a56a1602d