Transceiver: Fix logging TN and version
Transceiver: Fix logging TN and version

Since tn is declared as uint8_t, it's actually a char, and by default
c++'s ostream& operator<<(ostream&, unsigned char) tries to print chars
with its ASCII visible character instead of numeric value.

Change-Id: I534158e8e1719ad19a9cde7c747a8f8ad5a01a2b

osmocom/osmo-trx,osmocom/osmo-trx,osmocom/osmo-trx,osmocom/osmo-trx