cosmetic: gsm: meas_rep.h: Fix typo in comment

Change-Id: I35c47a69ad1e9a75de6cc82c44a87828ebbb7189
diff --git a/include/osmocom/gsm/meas_rep.h b/include/osmocom/gsm/meas_rep.h
index ba2accd..5628d8e 100644
--- a/include/osmocom/gsm/meas_rep.h
+++ b/include/osmocom/gsm/meas_rep.h
@@ -11,7 +11,7 @@
 	uint8_t rx_qual;
 };
 
-/* unidirectional measumrement report */
+/* unidirectional measurement report */
 struct gsm_meas_rep_unidir {
 	struct gsm_rx_lev_qual full;
 	struct gsm_rx_lev_qual sub;