make token@1.0-utils vendor_available:true

This, when used with BOARD_VNDK_VERSION flag, enables the
module to be built and installed twice, one for /system,
other for /vendor.

token@1.0-utils is used by libgui which is in turn used by libs in
/vendor and thus marked as vendor_available. Therefore, token@1.0-utils
is also marked as vendor_available.

Details: https://android-review.googlesource.com/368372

Bug: 33241851
Test: BOARD_VNDK_VERSION=current m android.hidl.token@1.0-utils.vendor successful
Change-Id: I5d87b4b030ee14f8cd7639873f426c714774b39e
1 file changed