Make bluetooth_flatbuffer_bundler_test host only

This test only works on the host currently as it doesn't
have a config to push the files needed for the test on the
device

Test: None
Bug: 265213364
Merged-In: I562b5ab38283c4c07126842b62661fb8686efafb
Change-Id: I562b5ab38283c4c07126842b62661fb8686efafb
(cherry picked from commit 38d7ecd4)