ARM: sunxi_defconfig: Enable INPUT_EVDEV so axp20x-pek can be used

sunxi_defconfig already enables INPUT_AXP20X_PEK, but the device is not
exposed to userspace. Enable INPUT_EVDEV so it is.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/configs/sunxi_defconfig

@@ -58,6 +58,7 @@ CONFIG_STMMAC_ETH=y
 # CONFIG_NET_VENDOR_WIZNET is not set
 # CONFIG_WLAN is not set
 # CONFIG_INPUT_MOUSEDEV is not set
+CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_SUN4I_LRADC=y
 # CONFIG_INPUT_MOUSE is not set
 CONFIG_INPUT_TOUCHSCREEN=y