The WLAN regulator uses 'gpios' property instead of 'gpio' to specify
regulator enable GPIO. While the former is also currently handled by
the Linux kernel regulator-fixed driver, the later is the correct one
per DT bindings. Update the DT to use the later.
Fixes: 7dd5cbba42c93 ("ARM: dts: stm32: Enable WiFi on AV96") Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>