Rename up_rtcinitialize to up_rtc_initialize so that it looks like other RTC interfaces

ChangeLog

@@ -10045,7 +10045,7 @@
 	  stm32_rtcc.c, stm32_rtcounter.c, and stm32f*_rcc.c: The
 	  STM32F4Discovery board doesn't come with a Low speed external
 	  oscillator so the default LSE source for the RTC doesn't work. In
-	  stm32_rtcc.c the up_rtcinitialize() logic doesn't work with the LSI.
+	  stm32_rtcc.c the up_rtc_initialize() logic doesn't work with the LSI.
 	  The check on RTC_MAGIC on the BK0R register lead to rtc_setup() call
 	  that rightfully enables the lsi clock; but the next times, when the
 	  rtc is already setup, the rtc_resume() call does NOT start the lsi

ReleaseNotes

@@ -8777,7 +8777,7 @@ detailed bugfix information):
         Jussi Kivilinna.
       - STM32 RTC and clock control:  The STM32F4Discovery board doesn't
         come with a Low speed external oscillator so the default LSE source
-        for the RTC doesn't work. In stm32_rtcc.c the up_rtcinitialize()
+        for the RTC doesn't work. In stm32_rtcc.c the up_rtc_initialize()
         logic doesn't work with the LSI. The check on RTC_MAGIC on the BK0R
         register lead to rtc_setup() call that rightfully enables the LSI
         clock; but the next times, when the rtc is already setup, the

include/nuttx/arch.h

@@ -1765,7 +1765,7 @@ size_t  up_check_intstack_remain(void);
  ****************************************************************************/
 
 /****************************************************************************
- * Name: up_rtcinitialize
+ * Name: up_rtc_initialize
  *
  * Description:
  *   Initialize the builtin, MCU hardware RTC per the selected
@@ -1786,7 +1786,7 @@ size_t  up_check_intstack_remain(void);
  ****************************************************************************/
 
 #if defined(CONFIG_RTC) && !defined(CONFIG_RTC_EXTERNAL)
-int up_rtcinitialize(void);
+int up_rtc_initialize(void);
 #endif
 
 /************************************************************************************

sched/clock/clock_initialize.c

@@ -206,7 +206,7 @@ void clock_initialize(void)
    * must be deferred until the system has booted.
    */
 
-  up_rtcinitialize();
+  up_rtc_initialize();
 #endif
 
   /* Initialize the time value to match the RTC */