Add header type 1 support for EGPRS uplink

Function is added to parse the EGPRS header type 1 in uplink tbf path.
along with configuration parameter updation to reflect max mcs in UL

Change-Id: I13c250e2e07377982ac3f29745f3cffd4088552a
Reviewed-on: https://gerrit.osmocom.org/270
Reviewed-by: Harald Welte <laforge@gnumonks.org>
Tested-by: Jenkins Builder
6 files changed