drm/amd/display: Add DCN315 Command Table Helper

Add vbios table support for DCN 3.1.5.
Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/bios/command_table_helper2.c

@@ -76,6 +76,7 @@ bool dal_bios_parser_init_cmd_tbl_helper2(
 	case DCN_VERSION_3_02:
 	case DCN_VERSION_3_03:
 	case DCN_VERSION_3_1:
+	case DCN_VERSION_3_15:
 	case DCN_VERSION_3_16:
 		*h = dal_cmd_tbl_helper_dce112_get_table2();
 		return true;