frame_relay: Fix some spelling/language issues

Change-Id: I0ec34c0b452a46008a629f664c10dabd3f836d56
diff --git a/src/gb/frame_relay.c b/src/gb/frame_relay.c
index f890209..fba31f8 100644
--- a/src/gb/frame_relay.c
+++ b/src/gb/frame_relay.c
@@ -342,7 +342,7 @@
 	OSMO_ASSERT(link);
 
 	if (link->role == FR_ROLE_USER_EQUIPMENT) {
-		LOGPFRL(link, LOGL_ERROR, "STATUS-ENQ are not support for role user\n");
+		LOGPFRL(link, LOGL_ERROR, "STATUS-ENQ aren't supported in role user\n");
 		return -1;
 	}
 
@@ -600,7 +600,7 @@
 	OSMO_ASSERT(link);
 
 	if (link->role == FR_ROLE_NETWORK_EQUIPMENT) {
-		LOGPFRL(link, LOGL_ERROR, "Rx STATUS: STATUS aren't support for role network\n");
+		LOGPFRL(link, LOGL_ERROR, "Rx STATUS: STATUS aren't supported in role network\n");
 		return -1;
 	}