treewide: Drop bootm_headers_t typedef

This is not needed and we should avoid typedefs. Use the struct instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arc/lib/bootm.c b/arch/arc/lib/bootm.c
index 628addd..07b2c15 100644
--- a/arch/arc/lib/bootm.c
+++ b/arch/arc/lib/bootm.c
@@ -22,10 +22,10 @@
 	return 0;
 }
 
-__weak int board_prep_linux(bootm_headers_t *images) { return 0; }
+__weak int board_prep_linux(struct bootm_headers *images) { return 0; }
 
 /* Subcommand: PREP */
-static int boot_prep_linux(bootm_headers_t *images)
+static int boot_prep_linux(struct bootm_headers *images)
 {
 	int ret;
 
@@ -49,7 +49,7 @@
 }
 
 /* Subcommand: GO */
-static void boot_jump_linux(bootm_headers_t *images, int flag)
+static void boot_jump_linux(struct bootm_headers *images, int flag)
 {
 	ulong kernel_entry;
 	unsigned int r0, r2;
@@ -79,7 +79,7 @@
 		board_jump_and_run(kernel_entry, r0, 0, r2);
 }
 
-int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+int do_bootm_linux(int flag, int argc, char *argv[], struct bootm_headers *images)
 {
 	/* No need for those on ARC */
 	if ((flag & BOOTM_STATE_OS_BD_T) || (flag & BOOTM_STATE_OS_CMDLINE))