ar71xx: fix lzma-loader kernel command line passing

The generic kernel cmdline parser ignores argv[0], this caused a
regression for all lzma-loader based boards with linux 4.1

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46544 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar71xx/image/lzma-loader/src/loader.c

@@ -73,9 +73,10 @@ static unsigned long lzma_outsize;
 static unsigned long kernel_la;
 
 #ifdef CONFIG_KERNEL_CMDLINE
-#define kernel_argc	1
+#define kernel_argc	2
 static const char kernel_cmdline[] = CONFIG_KERNEL_CMDLINE;
 static const char *kernel_argv[] = {
+	NULL,
 	kernel_cmdline,
 	NULL,
 };