USB: android: Add a new LUN as CD-ROM in mass-storage

Add a new LUN(lun0) which will be exposed as a CD-ROM having the
attributes ro(read-only) & removable as enabled.
This CD-ROM lun is used for saving read-only files which can be used
for system requirements.

Change-Id: Idff5aea8bce233e8b77a4b689323a2f1eb2523e1
Signed-off-by: Rajkumar Raghupathy <raghup@codeaurora.org>
diff --git a/include/linux/usb/android.h b/include/linux/usb/android.h
index bf65ebb..7c2b33b 100644
--- a/include/linux/usb/android.h
+++ b/include/linux/usb/android.h
@@ -21,6 +21,7 @@
 	int (*update_pid_and_serial_num)(uint32_t, const char *);
 	u32 swfi_latency;
 	u8 usb_core_id;
+	bool cdrom;
 };
 
 #endif	/* __LINUX_USB_ANDROID_H */