drm/amd/display: Change max OPP

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@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/dcn10/dcn10_mpc.h

@@ -30,7 +30,7 @@
 #define TO_DCN10_MPCC(mpcc_base) \
 	container_of(mpcc_base, struct dcn10_mpcc, base)
 
-#define MAX_OPP 4
+#define MAX_OPP 6
 
 #define MPC_COMMON_REG_LIST_DCN1_0(inst) \
 	SRII(MUX, MPC_OUT, inst),\