rename ykpiv_send_data() to send_data() since it's local
rename ykpiv_send_data() to send_data() since it's local

ato/yubico-piv-tool,Yubico/yubico-piv-tool,hirden/yubico-piv-tool,akgood/yubico-piv-tool,akgood/yubico-piv-tool,ato/yubico-piv-tool,hirden/yubico-piv-tool,akgood/yubico-piv-tool,Yubico/yubico-piv-tool,akgood/yubico-piv-tool,Yubico/yubico-piv-tool