rlcmac: Rename field to MS RA Cap2 in Additional_MS_Rad_Access_Cap_t

This fix was spotted by wireshark.git developers while reviewing port of
osmo-pcu commit e50ce6e45c4509805807d599cadf1a1b23d37f63.

Related: https://code.wireshark.org/review/c/36574/
Fixes: e50ce6e45c4509805807d599cadf1a1b23d37f63

Change-Id: Ic5fc3252f61b6a042d9c3def7a6a32b311dd9d9e
diff --git a/src/gsm_rlcmac.h b/src/gsm_rlcmac.h
index 39c6890..d0bd9f6 100644
--- a/src/gsm_rlcmac.h
+++ b/src/gsm_rlcmac.h
@@ -4972,7 +4972,7 @@
   guint8 R;
 
   AdditionalMsRadAccessCapID_t ID;
-  MS_Radio_Access_capability_t MS_Radio_Access_capability;
+  MS_Radio_Access_capability_t MS_Radio_Access_capability2;
 } Additional_MS_Rad_Access_Cap_t;
 
 /* End ADDITIONAL MS RADIO ACCESS CAPABILITIES */