usb: typec: tcpci_maxim: Make symbol 'max_tcpci_tcpci_write_table' static

usb: typec: tcpci_maxim: Make symbol 'max_tcpci_tcpci_write_table' static

The sparse tool complains as follows:

drivers/usb/typec/tcpm/tcpci_maxim.c:55:34: warning:
 symbol 'max_tcpci_tcpci_write_table' was not declared. Should it be static?

This symbol is not used outside of tcpci_maxim.c, so this
commit marks it static.

Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210324144253.1011234-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>