radeonsi/vpe: vpe support hdr input

when an application asks for supported formats
will return HDR formats(2020, explicit) is supported.

Signed-off-by: Peyton Lee <peytolee@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33731>

src/gallium/drivers/radeonsi/si_get.c

@@ -174,6 +174,10 @@ static int si_get_video_param(struct pipe_screen *screen, enum pipe_video_profil
       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
          /* for VPE we prefer non-interlaced buffer */
          return false;
+      case PIPE_VIDEO_CAP_VPP_SUPPORT_HDR_INPUT:
+         if (debug_get_bool_option("AMDGPU_SIVPE_SUPPORT_HDR_INPUT", false))
+            return true;
+         return false;
       default:
          return 0;
       }