Transceiver: Do not update state->SNRestimate if equalization is disabled.
Transceiver: Do not update state->SNRestimate if equalization is disabled.

This also fix a bug of using bool type for noise instead of float.

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

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