Merge pull request #3860 from MultiTechSystems/xdot-gpio-fix

Define GPIO_IP_WITHOUT_BRR for xDot platform

Author: 0xc0170

targets/TARGET_STM/TARGET_STM32L1/TARGET_XDOT_L151CC/objects.h

@@ -65,6 +65,7 @@ struct dac_s {
     PinName pin;
 };
 
+#define GPIO_IP_WITHOUT_BRR
 #include "common_objects.h"
 
 #ifdef __cplusplus