[new uImage] Re-enable interrupts for non automatic booting

Re-enable interrupts if we return from do_bootm_<os> and 'autostart'
environment variable is not set to 'yes'.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>

common/cmd_bootm.c

@@ -342,8 +342,12 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	show_boot_progress (-9);
 #ifdef DEBUG
 	puts ("\n## Control returned to monitor - resetting...\n");
+	if (images.autostart)
 		do_reset (cmdtp, flag, argc, argv);
 #endif
+	if (!images.autostart && iflag)
+		enable_interrupts();
+
 	return 1;
 }