mimxrt1050: fix vector table for flash driver (cmsis conflict)

Author: 0xc0170

targets/TARGET_NXP/TARGET_MCUXpresso_MCUS/TARGET_MIMXRT1050/TARGET_EVK/device.h

@@ -40,6 +40,13 @@
 
 #define BOARD_ENET_PHY_ADDR    (2)
 
+/* cmsis gcc defines this to be __Vectors. This causes a problem for this device as
+ its drivers uses __VECTOR_TABLE symbol from a linker. To avoid conflicts, we just undefine
+ this and use linker symbol as expected */
+#ifdef __VECTOR_TABLE
+#undef __VECTOR_TABLE
+#endif
+
 #include "objects.h"
 
 #endif