Add debugging log for RLC data block decoding

Added debugging log for RLC UL Data Block decoding for both GPRS/EGPRS cases.

Change-Id: I8c197bdc4cd1330cbab0adfd188336d27682cec4
diff --git a/tests/tbf/TbfTest.err b/tests/tbf/TbfTest.err
index a680812..2647551 100644
--- a/tests/tbf/TbfTest.err
+++ b/tests/tbf/TbfTest.err
@@ -6460,6 +6460,7 @@
 - Raising V(R) to 2
 - Taking block 1 out, raising V(Q) to 2
 - Assembling frames: (len=44)
+UL DATA LI contains extention octet: LI=0, E=1, count=0
 TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW EGPRS) complete UL frame len=44
 LLC [PCU -> SGSN] TBF(TFI=0 TLLI=0xf1223344 DIR=UL STATE=FLOW EGPRS) len=44
 No bctx