cmd: pxe: Fix bootm argument count

pxe command parses the init ramfs address(through initrd lable in
pxe config file), but is not passing it to bootm command as argument
as bootm_argc count is not increased.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/pxe.c b/cmd/pxe.c
index 2059975..768e50a 100644
--- a/cmd/pxe.c
+++ b/cmd/pxe.c
@@ -663,6 +663,7 @@
 		strncpy(bootm_argv[2], env_get("ramdisk_addr_r"), 18);
 		strcat(bootm_argv[2], ":");
 		strncat(bootm_argv[2], env_get("filesize"), 9);
+		bootm_argc = 3;
 	}
 
 	if (get_relfile_envaddr(cmdtp, label->kernel, "kernel_addr_r") < 0) {