gpio: of: Handle both enable-gpio{,s}

Handle both enable-gpio and enable-gpios properties of the GPIO
regulator in the quirk. The later is the preferred modern name
of the property.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jan Kotas <jank@cadence.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-renesas-soc@vger.kernel.org
To: linux-gpio@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpiolib-of.c

@@ -87,7 +87,8 @@ static void of_gpio_flags_quirks(struct device_node *np,
 	    (of_device_is_compatible(np, "regulator-fixed") ||
 	     of_device_is_compatible(np, "reg-fixed-voltage") ||
 	     (of_device_is_compatible(np, "regulator-gpio") &&
-	      strcmp(propname, "enable-gpio") == 0))) {
+	      !(strcmp(propname, "enable-gpio") &&
+	        strcmp(propname, "enable-gpios"))))) {
 		/*
 		 * The regulator GPIO handles are specified such that the
 		 * presence or absence of "enable-active-high" solely controls