android: fix SPIR-V -> NIR build

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Mauro Rossi <issor.oruam@gmail.com>
Fixes: 18f9fc919e1 ('spirv: add and use a generator id enum')
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7097>
3 files changed