STM32WB: FIX LL RTC warning

LMESTM · 0xc0170 · commit 1a6cdf849f3e · 2019-04-05T12:27:04.000+01:00
diff --git a/targets/TARGET_STM/TARGET_STM32WB/device/stm32wbxx_ll_rtc.h b/targets/TARGET_STM/TARGET_STM32WB/device/stm32wbxx_ll_rtc.h
@@ -3091,7 +3091,7 @@ __STATIC_INLINE void LL_RTC_BAK_SetRegister(RTC_TypeDef *RTCx, uint32_t BackupRe
   */
 __STATIC_INLINE uint32_t LL_RTC_BAK_GetRegister(RTC_TypeDef *RTCx, uint32_t BackupRegister)
 {
-  const register __IO uint32_t *tmp;
+  register const __IO uint32_t *tmp;
 
   tmp = &(RTCx->BKP0R) + BackupRegister;
 

Original file line number	Diff line number	Diff line change
`@@ -3091,7 +3091,7 @@ __STATIC_INLINE void LL_RTC_BAK_SetRegister(RTC_TypeDef *RTCx, uint32_t BackupRe`
`3091`	`3091`	`*/`
`3092`	`3092`	`__STATIC_INLINE uint32_t LL_RTC_BAK_GetRegister(RTC_TypeDef *RTCx, uint32_t BackupRegister)`
`3093`	`3093`	`{`
`3094`		`- const register __IO uint32_t *tmp;`
	`3094`	`+ register const __IO uint32_t *tmp;`
`3095`	`3095`
`3096`	`3096`	`tmp = &(RTCx->BKP0R) + BackupRegister;`
`3097`	`3097`