usb: typec: tcpm/tcpci_maxim: simplify clearing of TCPC_ALERT_RX_BUF_OVF

There is no need for using the ternary if/else here, simply mask
TCPC_ALERT_RX_BUF_OVF as necessary, which arguably makes the code
easier to read.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20240710-tcpc-cleanup-v1-9-0ec1f41f4263@linaro.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>