core/panic: enable panic modes for Cortex-M7

core/include/panic.h

@@ -40,7 +40,7 @@ typedef enum {
     PANIC_NMI_HANDLER,       /**< non maskable interrupt */
     PANIC_HARD_FAULT,        /**< hard fault */
 #if defined(CPU_ARCH_CORTEX_M3) || defined(CPU_ARCH_CORTEX_M4) || \
-    defined(CPU_ARCH_CORTEX_M4F)
+    defined(CPU_ARCH_CORTEX_M4F) || defined(CPU_ARCH_CORTEX_M7)
     PANIC_MEM_MANAGE,        /**< memory controller interrupt */
     PANIC_BUS_FAULT,         /**< bus fault */
     PANIC_USAGE_FAULT,       /**< undefined instruction or unaligned access */