cm_backtrace: shorten useless strings

Author: facchinm

cores/arduino/cm_backtrace/cm_backtrace.c

@@ -117,7 +117,7 @@ static const char * const print_info[] = {
 #endif
 };
 
-static char fw_name[CMB_NAME_MAX] = {0};
+static char fw_name[128] = {0};
 static char hw_ver[CMB_NAME_MAX] = {0};
 static char sw_ver[CMB_NAME_MAX] = {0};
 static uint32_t main_stack_start_addr = 0;

cores/arduino/cm_backtrace/cmb_def.h

@@ -54,7 +54,7 @@
 
 /* name max length, default size: 32 */
 #ifndef CMB_NAME_MAX
-#define CMB_NAME_MAX                      128
+#define CMB_NAME_MAX                      16
 #endif
 
 /* print information language, default is English */