Merge pull request ARMmbed#13645 from boraozgen/bugfix/stm32f412xg_usart3

Patch STM32F4 HAL to fix F412CG USART3 issue

Author: 0xc0170

targets/TARGET_STM/TARGET_STM32F4/STM32Cube_FW/STM32F4xx_HAL_Driver/stm32f4xx_hal_rcc_ex.h

@@ -4969,7 +4969,7 @@ typedef struct
                                       tmpreg = READ_BIT(RCC->APB1ENR, RCC_APB1ENR_RTCAPBEN);\
                                       UNUSED(tmpreg); \
                                       } while(0U)
-#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F413xx) || defined(STM32F423xx)
+#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
 #define __HAL_RCC_USART3_CLK_ENABLE() do { \
                                       __IO uint32_t tmpreg = 0x00U; \
                                       SET_BIT(RCC->APB1ENR, RCC_APB1ENR_USART3EN);\
@@ -5098,7 +5098,7 @@ typedef struct
 #endif /* STM32F413xx || STM32F423xx */
 #define __HAL_RCC_RTCAPB_CLK_DISABLE()  (RCC->APB1ENR &= ~(RCC_APB1ENR_RTCAPBEN))                                       
 #define __HAL_RCC_SPI3_CLK_DISABLE()    (RCC->APB1ENR &= ~(RCC_APB1ENR_SPI3EN))
-#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F413xx) || defined(STM32F423xx)
+#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
 #define __HAL_RCC_USART3_CLK_DISABLE()  (RCC->APB1ENR &= ~(RCC_APB1ENR_USART3EN))
 #endif /* STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F413xx || STM32F423xx */
 #if defined(STM32F413xx) || defined(STM32F423xx)   
@@ -5445,7 +5445,7 @@ typedef struct
 #define __HAL_RCC_LPTIM1_FORCE_RESET()   (RCC->APB1RSTR |= (RCC_APB1RSTR_LPTIM1RST)) 
 #endif /* STM32F413xx || STM32F423xx */                                        
 #define __HAL_RCC_SPI3_FORCE_RESET()     (RCC->APB1RSTR |= (RCC_APB1RSTR_SPI3RST))                                        
-#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F413xx) || defined(STM32F423xx)
+#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
 #define __HAL_RCC_USART3_FORCE_RESET()   (RCC->APB1RSTR |= (RCC_APB1RSTR_USART3RST))
 #endif /* STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F413xx || STM32F423xx */
 #if defined(STM32F413xx) || defined(STM32F423xx)
@@ -5475,7 +5475,7 @@ typedef struct
 #define __HAL_RCC_LPTIM1_RELEASE_RESET()  (RCC->APB1RSTR &= ~(RCC_APB1RSTR_LPTIM1RST))
 #endif /* STM32F413xx || STM32F423xx */                                        
 #define __HAL_RCC_SPI3_RELEASE_RESET()    (RCC->APB1RSTR &= ~(RCC_APB1RSTR_SPI3RST))
-#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F413xx) || defined(STM32F423xx)
+#if defined(STM32F412Zx) || defined(STM32F412Vx) || defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
 #define __HAL_RCC_USART3_RELEASE_RESET()  (RCC->APB1RSTR &= ~(RCC_APB1RSTR_USART3RST))
 #endif /* STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F413xx || STM32F423xx */
 #if defined(STM32F413xx) || defined(STM32F423xx)