Commit
1c3b927b4e0ac5ccc98fb1f3030b0dc23ec9b137
by laforgesysmoOCTSIM/README: Describe how to build matching libosmocore
we currently require a libosmocore that's cross-compiled for this
specific embedded target. This information was so far hidden
in contrib/jenkins.sh - let's expose it to README.md (slightly modified
command to install it to /usr/local/arm-none-eabi)
Change-Id: I3392d134ed75dbdd558643aac6d58407e00d23ba