cros_ec: Move #ifdef to permit flash region access

Flash region access is not tied to having commands, so adjust the #ifdef
to reflect this.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/misc/cros_ec.c

@@ -932,7 +932,6 @@ int cros_ec_init(const void *blob, struct cros_ec_dev **cros_ecp)
 	return 0;
 }
 
-#ifdef CONFIG_CMD_CROS_EC
 int cros_ec_decode_region(int argc, char * const argv[])
 {
 	if (argc > 0) {
@@ -999,6 +998,8 @@ int cros_ec_decode_ec_flash(const void *blob, struct fdt_cros_ec *config)
 	return 0;
 }
 
+#ifdef CONFIG_CMD_CROS_EC
+
 /**
  * Perform a flash read or write command
  *