hdmi_frl_pcon_support has been the source of confusion. So, rename it to
dp_hdmi21_pcon_support.
Signed-off-by: NHamza Mahfooz <hamza.mahfooz@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>