endeavoru: Change PRODUCT_MODEL back to HTC One X

This string seems to appear in various places like EXIF metadata. It looks
nicer this way.

Change-Id: I49b15f848dfb1412c6c1f14e46daf9a820ec345b
endeavoru: Update Bluetooth define

Change-Id: Ie26dbd7d4d07d1c07619da7902800e8fb2db1d57