RTC: Change this #ifdef to GBA_LOGGING

src/gba/RTC.cpp

@@ -243,7 +243,7 @@ bool rtcWrite(uint32_t address, uint16_t value)
                         } break;
 
                         default:
-#ifndef __LIBRETRO__
+#ifdef GBA_LOGGING
                             log(N_("Unknown RTC command %02x"), rtcClockData.command);
 #endif
                             rtcClockData.state = IDLE;