[nearby] Move NearbyIntegrationUntrustedTests and NearbyIntegrationPrivilegedTests from presubmit to postsubmit

The test runs for over 20min on several devices and we should move it to postsubmit.

Test: -m
Merged-In: Ie21c4ccece686896870c12486f55fe48840bdb1b
Change-Id: I4f5f8336bb8f952db062f927f79304df2f07cdeb
1 file changed