osmo-pcap-master: doesn't need libosmo-netif

Don't attempt to install libosmo-netif in this Dockerfile. I've noticed
this because we want to build osmo-pcap for CentOS7 with this container
to run the TTCN-3 tests, and we don't have libosmo-netif for CentOS7.

Add pkgconfig(libosmogb), which is required to build osmo-pcap
according to configure.ac. In Debian, this gets installed as part of
libosmocore-dev.

Related: SYS#5754
Change-Id: I9c3a3b43ee7c25c06042f3303b9edb4005e7db31

osmo-pcap-master/Dockerfile

@@ -9,16 +9,15 @@ RUN	case "$DISTRO" in \
 		apt-get update && \
 		apt-get install -y --no-install-recommends \
 			libosmocore-dev \
-			libosmo-netif-dev \
 			libzmq3-dev \
 			&& \
 		apt-get clean \
 		;; \
 	centos*) \
 		dnf install -y \
-			"pkgconfig(libosmo-netif)" \
 			"pkgconfig(libosmocore)" \
 			"pkgconfig(libosmoctrl)" \
+			"pkgconfig(libosmogb)" \
 			"pkgconfig(libosmogsm)" \
 			"pkgconfig(libosmovty)" \
 			"pkgconfig(libzmq)" \