nxphlite-v3:Use non data time RTC configuration.

   One a 32.768 is added (RC16) to the board this will keep time.

platforms/nuttx/nuttx-configs/nxphlite-v3/nsh/defconfig

@@ -575,7 +575,7 @@ CONFIG_SPI_EXCHANGE=y
 # CONFIG_TIMER is not set
 # CONFIG_ONESHOT is not set
 CONFIG_RTC=y
-CONFIG_RTC_DATETIME=y
+# CONFIG_RTC_DATETIME is not set
 # CONFIG_RTC_ALARM is not set
 # CONFIG_RTC_DRIVER is not set
 # CONFIG_RTC_EXTERNAL is not set

src/drivers/boards/nxphlite-v3/init.c

@@ -244,29 +244,8 @@ kinetis_boardinitialize(void)
 	/* Power on Spektrum */
 
 	VDD_3V3_SPEKTRUM_POWER_EN(true);
-
-}
-
-//FIXME: Stubs  -----v
-int up_rtc_getdatetime(FAR struct tm *tp);
-int up_rtc_getdatetime(FAR struct tm *tp)
-{
-	tp->tm_sec = 0;
-	tp->tm_min = 0;
-	tp->tm_hour = 0;
-	tp->tm_mday = 30;
-	tp->tm_mon = 10;
-	tp->tm_year = 116;
-	tp->tm_wday = 1;    /* Day of the week (0-6) */
-	tp->tm_yday = 0;    /* Day of the year (0-365) */
-	tp->tm_isdst = 0;   /* Non-0 if daylight savings time is in effect */
-	return 0;
 }
 
-
-//FIXME: Stubs  -----v
-
-
 /****************************************************************************
  * Name: board_app_initialize
  *