Combine bootm_find_<thing> functions together

bootm_find_ramdisk_fdt() renamed to bootm_find_images() for readability.

The function bootm_find_ramdisk_fdt() appears to be a simple wrapper for
bootm_find_ramdisk(), bootm_find_fdt(), and now bootm_find_loadables().
I didn't see any other callers entering a bootm_find<thing>, so removing
the wrapper, and condensing these together hopefully makes the code a
little simpler.

Signed-off-by: Karl Apsite <Karl.Apsite@dornerworks.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 6b6aca6..48738ac 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -580,7 +580,7 @@
 	 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
 	 * have a header that provide this informaiton.
 	 */
-	if (bootm_find_ramdisk_fdt(flag, argc, argv))
+	if (bootm_find_images(flag, argc, argv))
 		return 1;
 
 	return 0;
@@ -721,7 +721,7 @@
 	 * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
 	 * have a header that provide this informaiton.
 	 */
-	if (bootm_find_ramdisk_fdt(flag, argc, argv))
+	if (bootm_find_images(flag, argc, argv))
 		return 1;
 
 	return 0;