image: fix Android ramdisk support when dtb is specified

If a dtb is specified on the command-line, the Android boot image ramdisk
will not be found. Fix this so that we can specify the ramdisk address and
dtb address. The syntax is to enter the Android boot image address for
both the kernel and ramdisk.

Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/common/image.c b/common/image.c
index c3616e2..ca721c5 100644
--- a/common/image.c
+++ b/common/image.c
@@ -906,6 +906,7 @@
 
 	if (argc >= 2)
 		select = argv[1];
+
 	/*
 	 * Look for a '-' which indicates to ignore the
 	 * ramdisk argument
@@ -1005,6 +1006,12 @@
 			images->fit_noffset_rd = rd_noffset;
 			break;
 #endif
+#ifdef CONFIG_ANDROID_BOOT_IMAGE
+		case IMAGE_FORMAT_ANDROID:
+			android_image_get_ramdisk((void *)images->os.start,
+				&rd_data, &rd_len);
+			break;
+#endif
 		default:
 #ifdef CONFIG_SUPPORT_RAW_INITRD
 			end = NULL;
@@ -1035,16 +1042,7 @@
 				(ulong)images->legacy_hdr_os);
 
 		image_multi_getimg(images->legacy_hdr_os, 1, &rd_data, &rd_len);
-	}
-#ifdef CONFIG_ANDROID_BOOT_IMAGE
-	else if ((genimg_get_format((void *)images->os.start)
-			== IMAGE_FORMAT_ANDROID) &&
-		 (!android_image_get_ramdisk((void *)images->os.start,
-		 &rd_data, &rd_len))) {
-		/* empty */
-	}
-#endif
-	else {
+	} else {
 		/*
 		 * no initrd image
 		 */