fix two separate bugs around RGB aux channels

First off, green was not defined properly and was instead defined the
same as a main channel (leading to the behaviour described in the issue
at ToyKeeper#33 (comment)

Second, fix the actual bug causing aux to not work for blinky modes.
Specifically, set_level needs to be patched so that instead of (or as
well as, doesn't really matter) calling set_level_zero(), it will also
check for if the active channel is an RGB channel and if so them clear
RGB state.

fsm/chan-rgbaux.h

@@ -46,6 +46,7 @@
         .set_level    = set_level_auxgrn, \
         .gradual_tick = gradual_tick_null \
         AUX_RGB_HAS_ARGS \
+        AUX_RGB_USES_AUX \
     }, \
     { \
         .set_level    = set_level_auxcyn, \

fsm/ramping.c

@@ -40,15 +40,15 @@ inline void set_level_aux_leds(uint8_t level) {
 // TODO: maybe move this stuff into FSM
 #include "anduril/aux-leds.h"  // for rgb_led_voltage_readout()
 inline void set_level_aux_rgb_leds(uint8_t level) {
-    if ((! go_to_standby)
+       if (
        #ifdef USE_CHANNEL_USES_AUX
-       && (!channel_uses_aux(channel_mode))
+       (!channel_uses_aux(channel_mode))
+       #else
+       (! go_to_standby)
        #endif
        ){
         if (level > 0) {
             rgb_led_voltage_readout(level > USE_AUX_RGB_LEDS_WHILE_ON);
-        } else {
-            rgb_led_set(0);
         }
         // some drivers can be wired with RGB or single color to button
         // ... so support both even though only one is connected
@@ -87,11 +87,24 @@ void set_level(uint8_t level) {
     #endif
 
     #ifdef USE_AUX_RGB_LEDS_WHILE_ON
+       #ifdef USE_CHANNEL_USES_AUX
+       if (!channel_uses_aux(channel_mode)) {
+         set_level_aux_rgb_leds(level);
+       }
+       #else
+       set_level_aux_rgb_leds(level);
+       #endif
+
     set_level_aux_rgb_leds(level);
     #endif
 
     if (0 == level) {
         set_level_zero();
+        #ifdef USE_CHANNEL_USES_AUX
+            if (channel_uses_aux(channel_mode)){
+                rgb_led_set(0);
+            }
+        #endif
     } else {
         // call the relevant hardware-specific set_level_*()
         SetLevelFuncPtr set_level_func = channels[channel_mode].set_level;