drivers fsl_elemu: undef BIT if already defined

Signed-off-by: Zhaoxiang Jin <[email protected]>

Author: ZhaoxiangJin

mcux/mcux-sdk-ng/drivers/elemu/fsl_elemu.c

@@ -26,6 +26,12 @@ static status_t ELEMU_StartupWait(ELEMU_Type *mu);
 #endif
 /* ELEMU driver */
 
+/* undef BIT in case of redefinition
+ * error: "BIT" redefined
+ */
+#ifdef BIT
+#undef BIT
+#endif
 #define BIT(x)         (((uint32_t)1u << (x)))
 #define MU_READ_HEADER (0x01u)
 #define READ_RETRIES   (0x5u)