Fix to small spelling error.

diff --git a/openbsc/src/gprs/gprs_gmm.c b/openbsc/src/gprs/gprs_gmm.c index cc9d297..ff2069a 100644

--- a/openbsc/src/gprs/gprs_gmm.c

+++ b/openbsc/src/gprs/gprs_gmm.c

@@ -1055,7 +1055,7 @@ static int gsm0408_rcv_gmm(struct sgsn_mm_ctx *mmctx, struct msgb *msg,

                break;

        case GSM48_MT_GMM_RA_UPD_COMPL:

                /* only in case SGSN offered new P-TMSI */

-               DEBUGP(DMM, "-> ROUTEING AREA UPDATE COMPLETE\n");

+               DEBUGP(DMM, "-> ROUTING AREA UPDATE COMPLETE\n");

                mmctx_timer_stop(mmctx, 3350);

                mmctx->p_tmsi_old = 0;

                /* Unassign the old TLLI */