add mask color option

ip/sc_config/inc/sc_config_regs.h

@@ -93,9 +93,10 @@ typedef union {
 typedef union {
     struct {
         alt_u8 mask_br:4;
+        alt_u8 mask_color:3;
         alt_u8 rev_lpf_str:5;
         alt_u8 panasonic_hack:1;
-        alt_u32 misc_rsv:22;
+        alt_u32 misc_rsv:19;
     } __attribute__((packed, __may_alias__));
     alt_u32 data;
 } misc_config_reg;