Changes

debian: libosmo-abis-dev dep on libosmo-netif-dev

Let libosmo-netif-dev depend on libosmo-abis-dev, so libosmoabis.pc is
available when using libosmonetif.pc (which now references
libosmoabis.pc).

Without this, osmo-pcu and osmo-remsim fail to build:

  checking for libosmoabis >= 1.6.0... no
  configure: error: Package requirements (libosmoabis >= 1.6.0) were not met:

  Package 'libosmo-netif', required by 'libosmoabis', not found

Fixes: 258dcf71 ("ipaccess: Convert BTS OML & RSL link to use stream_cli")
Change-Id: I06031417406b4b3187eb9c7ed8b509e97e03bb7f