tree aae045d6a0428c59840cf3e27bbc87aa5f38b5b1
parent 8fbaad69039287137648c66cbb7f5c91ad1449ad
author Max <msuraev@sysmocom.de> 1668975964 +0300
committer msuraev <msuraev@sysmocom.de> 1668980932 +0000

Add define for unset Frame Number

It's handy for OsmoPCU as well as upcoming LAPD T200 code.

Related: OS#4074
Change-Id: I641f1a1bf1e86ced8ffe89e88bc48afb79823393