Yes, you can do that in Trust Wallet. If you have an account on Binance Exchange, you can deposit BNB (using BSC network) into your account and then exchange BNB for CRV on Binance, as they have a BNB<>CRV pair. Once you have done this, you can use Trust Wallet to store your CRV tokens securely.
you have account on Binance exchange? if yes, then deposit into Binance BNB (using BSC network), then you can exchange BNB for CRV on binance (have a BNB<>CRV pair)