timekeeper code sanitizations

include/rtctime.h

@@ -8,9 +8,8 @@
 
 extern RtcDS3231<TwoWire> Rtc; // make RTC instance globally available
 
-int rtc_init(void);
-int set_rtctime(uint32_t t);
-int set_rtctime(time_t t);
+uint8_t rtc_init(void);
+uint8_t set_rtctime(time_t t);
 void sync_rtctime(void);
 time_t get_rtctime(void);
 float get_rtctemp(void);

include/timekeeper.h

@@ -13,7 +13,7 @@
 #include "dcf77.h"
 #endif
 
-enum timesources { pps, rtc, lora, unsynced };
+enum timesources { _gps, _rtc, _lora, _unsynced };
 
 void IRAM_ATTR CLOCKIRQ(void);
 void clock_init(void);