bootm: Adjust arguments of boot_os_fn

Adjust boot_os_fn to use struct bootm_info instead of the separate
argc, argv and image parameters. Update the handlers accordingly. Few
of the functions make use of the arguments, so this improves code size
slightly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/lib/bootm.c b/arch/powerpc/lib/bootm.c
index 910121e..75c6bfd 100644
--- a/arch/powerpc/lib/bootm.c
+++ b/arch/powerpc/lib/bootm.c
@@ -8,6 +8,7 @@
 
 
 #include <common.h>
+#include <bootm.h>
 #include <bootstage.h>
 #include <cpu_func.h>
 #include <env.h>
@@ -223,9 +224,9 @@
 	return 0;
 }
 
-noinline int do_bootm_linux(int flag, int argc, char *const argv[],
-			    struct bootm_headers *images)
+int do_bootm_linux(int flag, struct bootm_info *bmi)
 {
+	struct bootm_headers *images = bmi->images;
 	int	ret;
 
 	if (flag & BOOTM_STATE_OS_CMDLINE) {