Same as already done for libosmo-ranap.
This allows applications setting the cateogy dynamically, and will allow
untangling library tests using hnbgw log categories in this repo.
Change-Id: I5d09b67b115ad8938e5162a23accfcbafab139d4
Fix various mem leaks in the testing code.
Add test_common_cleanup() in test_common.c, to free talloc contexts; call in
test-{helpers,hnbap,ranap}.c. Upon talloc ctx cleanup, ensure that they are
actually empty, in order to catch newly introduced mem leaks.
If non-empty, print talloc context reports.
Change-Id: Ic66c005f2a264774e18bb54e58b87bef5944511c