pinctrl: imx: support SCMI pinctrl protocol for i.MX95

The generic pinctrl-scmi.c driver could not be used for i.MX95 because
i.MX95 SCMI firmware not supports functions, groups or generic
'Pin Configuration Type and Enumerations' listed in SCMI Specification.

i.MX95 System Control Management Interface(SCMI) firmware only supports
below pin configuration types which are OEM specific types:
    192: PIN MUX
    193: PIN CONF
    194: DAISY ID
    195: DAISY VAL

To Support fsl,pins property together with SCMI OEM protocol, add this
driver.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20240521-pinctrl-scmi-imx95-v1-3-9a1175d735fd@nxp.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>