osmo-bsc.spec.in: Add missing directories to package

CentOS is happy with the spec file as-is, but OpenSuSE is more strict:

[   62s] osmo-bsc-1.6.0.191.bd5b-lp152.1.1.x86_64.rpm: directories not owned by a package:
[   62s]  - /usr/share/doc/packages/osmo-bsc/examples/osmo-bsc/ericsson
[   62s]  - /usr/share/doc/packages/osmo-bsc/examples/osmo-bsc/nokia
[   62s]  - /usr/share/doc/packages/osmo-bsc/examples/osmo-bsc/siemens

Change-Id: I40ad5d38b968db847cf5f733f82163ecac1151e0
1 file changed