bootm: Drop arguments from bootm_start()

This function does not use its arguments. Drop them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/boot/bootm.c b/boot/bootm.c
index cb61485..fda9770 100644
--- a/boot/bootm.c
+++ b/boot/bootm.c
@@ -69,8 +69,7 @@
 static inline void boot_start_lmb(struct bootm_headers *images) { }
 #endif
 
-static int bootm_start(struct cmd_tbl *cmdtp, int flag, int argc,
-		       char *const argv[])
+static int bootm_start(void)
 {
 	memset((void *)&images, 0, sizeof(images));
 	images.verify = env_get_yesno("verify");
@@ -783,7 +782,7 @@
 	 * any error.
 	 */
 	if (states & BOOTM_STATE_START)
-		ret = bootm_start(cmdtp, flag, argc, argv);
+		ret = bootm_start();
 
 	if (!ret && (states & BOOTM_STATE_PRE_LOAD))
 		ret = bootm_pre_load(cmdtp, flag, argc, argv);