x11-toolkits/wlroots-devel: unbreak X11=off build after 4aaa83fc

../backend/libinput/tablet_tool.c:4:10: fatal error: 'linux/input.h' file not found
 #include <linux/input.h>
          ^~~~~~~~~~~~~~~

https://gitlab.freedesktop.org/wlroots/wlroots/-/commit/94dbb3cfb529

x11-toolkits/wlroots-devel/Makefile

@@ -41,7 +41,8 @@ OPTIONS_DEFAULT=DRM OPENGL VULKAN X11
 OPTIONS_SUB=	yes
 
 DRM_DESC=		KMS console support
-DRM_BUILD_DEPENDS=	hwdata>0:misc/hwdata
+DRM_BUILD_DEPENDS=	evdev-proto>0:devel/evdev-proto \
+			hwdata>0:misc/hwdata
 DRM_LIB_DEPENDS=	libudev.so:devel/libudev-devd \
 			libliftoff.so:graphics/libliftoff \
 			libdisplay-info.so:sysutils/libdisplay-info \