pinctrl: scmi: send the settings without argument as enabled

bias-bus-hold, bias-disable, bias-high-impedance, drive-open-drain,
drive-open-source and drive-push-pull take no argument in Linux, so
they were sent with the value 0, which the protocol reads as disabled.
Send 1.

Fixes: eb524cb651b7 ("pinctrl: Implementation of the generic scmi-pinctrl driver")
Signed-off-by: Clément Le Goffic <clegoffic@baylibre.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>