Update variants/STM32WLxx/WL54CCU_WL55CCU_WLE4C(8-B-C)U_WLE5C(8-B-C)U/variant_GENERIC_NODE.h

Co-authored-by: Frederic Pillon <frederic.pillon@st.com>

Author: sabas1080

variants/STM32WLxx/WL54CCU_WL55CCU_WLE4C(8-B-C)U_WLE5C(8-B-C)U/variant_GENERIC_NODE.h

@@ -63,7 +63,7 @@
 
 
 // On-board user button
-#define B1_BTN              PB3
+#define B1_BTN                PB3
 #ifndef USER_BTN
   #define USER_BTN            B1_BTN
 #endif