phy: Also allow MESON_GXM for MESON_GXL_USB_PHY

The MESON_GXL_USB_PHY is also used on the Amlogic Meson GXM SoCs.

Fixes: 2960e27e38 ("phy: Add Amlogic Meson USB2 & USB3 Generic PHY drivers")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 825ee7c..32bbf41 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -141,7 +141,7 @@
 
 config MESON_GXL_USB_PHY
 	bool "Amlogic Meson GXL USB PHYs"
-	depends on PHY && ARCH_MESON && MESON_GXL
+	depends on PHY && ARCH_MESON && (MESON_GXL || MESON_GXM)
 	imply REGMAP
 	help
 	  This is the generic phy driver for the Amlogic Meson GXL