uhd: Remove references to USRP B205
uhd: Remove references to USRP B205

Certain pre-release versions of the B200mini used the B205 naming, which no
longer exists. Update device naming and detection to reflect current UHD
product names.

Signed-off-by: Tom Tsou <072b11b861b7a066437a0a0cead1208995732a66@ettus.com>

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