This allows easily changing to another osmocom repo base URL if the
default one is down.
Related: OS#4862
Change-Id: I8010b08f3dabacfb3c13a44eece6c7a490e0742e
This container is useful for people wanting to have an easy method
to gain a build environment for the simtrace2 firmware + host utilities.
Change-Id: I08b2fc542dd3568d26f199427523cfa81eb26d70