firmware_loader: Add firmware paths used on Android

On Android, atleast on QCOM platforms, firmware are
located in these paths. Add them to the default path
list so they can be loaded directly, rather than
falling back to uevent (unless blocked by selinux).

drivers/base/firmware_loader/main.c

@@ -446,6 +446,9 @@ static int fw_decompress_xz(struct device *dev, struct fw_priv *fw_priv,
 static char fw_path_para[256];
 static const char * const fw_path[] = {
 	fw_path_para,
+	"/vendor/firmware",
+	"/vendor/firmware_mnt/image",
+	"/firmware/image",
 	"/lib/firmware/updates/" UTS_RELEASE,
 	"/lib/firmware/updates",
 	"/lib/firmware/" UTS_RELEASE,