initialize state before calling HAL_XXX_Init for SPI and I2C

If we use a dynamic instanciation, the state is not well
initialized. This can ends with a blocking or strange
behaviour.

Author: VVESTM

cores/arduino/stm32/spi_com.c

@@ -371,6 +371,8 @@ void spi_init(spi_t *obj, uint32_t speed, spi_mode_e mode, uint8_t msb)
   }
 #endif
 
+  handle->State = HAL_SPI_STATE_RESET;
+
   HAL_SPI_Init(handle);
 
   /* In order to set correctly the SPI polarity we need to enable the peripheral */

cores/arduino/stm32/twi.c

@@ -253,6 +253,8 @@ void i2c_custom_init(i2c_t *obj, i2c_timing_e timing, uint32_t addressingMode, u
   handle->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
   handle->Init.NoStretchMode   = I2C_NOSTRETCH_DISABLE;
 
+  handle->State = HAL_I2C_STATE_RESET;
+
   if(master == 0) {
     HAL_NVIC_SetPriority(obj->irq, 0, 1);
     HAL_NVIC_EnableIRQ(obj->irq);