arm64: defconfig: Enable SX150x GPIO expander driver

The ANX7625 bridge on the Qualcomm QCS615 Ride reference board is connected
to a Semtech SX150x GPIO expander. Enable the SX150x driver to make the
display on boards built following this design functional.

Signed-off-by: Fange Zhang <fange.zhang@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251105-enable-sx150x-gpio-expander-v3-1-2ec8dfde2c9e@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Author: Fange Zhang

arch/arm64/configs/defconfig

@@ -606,6 +606,7 @@ CONFIG_PINCTRL_DA9062=m
 CONFIG_PINCTRL_MAX77620=y
 CONFIG_PINCTRL_RK805=m
 CONFIG_PINCTRL_SINGLE=y
+CONFIG_PINCTRL_SX150X=m
 CONFIG_PINCTRL_OWL=y
 CONFIG_PINCTRL_S700=y
 CONFIG_PINCTRL_S900=y