Fix writing value for hand-tracking V2.0 to AndroidManifest.xml

[tom95]

Due to a typo, the value for the meta-data tag for the hand-tracking-version was never set. It should be set in the "value" attribute, not in the "name" attribute.

Corresponding excerpt from the AndroidManifest.xml:

        <meta-data
            android:name="xr_hand_tracking_version_name"
            android:value="xr_hand_tracking_version_value"/>

Compatible with 3.x

[akien-mga]

Thanks!

[akien-mga]

Cherry-picked for 3.6.

[akien-mga]

Cherry-picked for 3.5.2.