RTC: PCF85063 support, port to SensorLib 0.3.1 (#8061)

* RTC: PCF85063 support, port to SensorLib 0.3.1

* Tidy up defines

* Remove RTC/PCF8563 mentions from unrelated variants

* Bump SensorLib 0.3.2

* Use SensorRtcHelper

* Consistent warning message

* Fix oversight

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Manuel <71137295+mverch67@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

variants/nrf52840/ELECROW-ThinkNode-M1/variant.h

@@ -93,8 +93,6 @@ static const uint8_t A0 = PIN_A0;
 
 #define TP_SER_IO (0 + 11)
 
-#define PIN_RTC_INT (0 + 16) // Interrupt from the PCF8563 RTC
-
 /*
 External serial flash WP25R1635FZUIL0
 */
@@ -161,9 +159,6 @@ External serial flash WP25R1635FZUIL0
 #define PIN_SERIAL1_TX GPS_TX_PIN
 #define PIN_SERIAL1_RX GPS_RX_PIN
 
-// PCF8563 RTC Module
-#define PCF8563_RTC 0x51
-
 /*
  * SPI Interfaces
  */
@@ -190,7 +185,6 @@ External serial flash WP25R1635FZUIL0
 #define VBAT_AR_INTERNAL AR_INTERNAL_3_0
 #define ADC_MULTIPLIER (2.02F)
 
-// #define HAS_RTC 0
 // #define HAS_SCREEN 0
 
 #ifdef __cplusplus