Fix common misspellings and typos

Change-Id: I4ec7accb1912c052b446be7c399bed32a8c62253
diff --git a/Transceiver52M/proto_trxd.c b/Transceiver52M/proto_trxd.c
index fbef77a..5a898b9 100644
--- a/Transceiver52M/proto_trxd.c
+++ b/Transceiver52M/proto_trxd.c
@@ -72,7 +72,7 @@
 	if(bi->idle)
 		return true;
 
-	/* +2: Historically (OpenBTS times), two extra non-used bytes are sent appeneded to each burst */
+	/* +2: Historically (OpenBTS times), two extra non-used bytes are sent appended to each burst */
 	char buf[sizeof(struct trxd_hdr_v0) + bi->nbits + 2];
 	struct trxd_hdr_v0* pkt = (struct trxd_hdr_v0*)buf;