app-containers/waydroid: Changed category of waydroid from app-emulation

cause it container-based approach

Bug: https://bugs.gentoo.org/834025
Signed-off-by: Denis Reva <denis7774@gmail.com>

app-containers/waydroid/files/waydroid

@@ -0,0 +1,9 @@
+#!/usr/bin/openrc-run
+description="Waydroid Container Manager"
+start() {
+  waydroid container start &
+}
+stop() {
+  waydroid container stop 
+  waydroid session stop
+}