osmo-bts-trx/trx_provision_fsm: cosmetic: switch is not a function
osmo-bts-trx/trx_provision_fsm: cosmetic: switch is not a function

Change-Id: I56d2777bcc43c96b9fa1672d3ad29bf9817208bb

osmocom/osmo-bts,osmocom/osmo-bts,osmocom/osmo-bts