The function is declared and defined as inline and gcc6 will not
emit an external visible symbol for it. Master doesn't have this
problem anymore so let's just patch it here.
Fixes:
| /usr/src/debug/osmo-bts/0.4.3+gitAUTOINC+57ee780789-r1a2ff06d20-r18.18/git/tests/sysmobts/sysmobts_test.c:207: undefined reference to `l1if_ms_pwr_ctrl'
The code has not been finished and doesn't meet the quality
standards we have for a product. Comment the sysmobts-mgr
related files that will be back soon.