Add policy for x86 emulator.
diff --git a/target/board/generic_x86/sepolicy/system_server.te b/target/board/generic_x86/sepolicy/system_server.te
new file mode 100644
index 0000000..5d98a14
--- /dev/null
+++ b/target/board/generic_x86/sepolicy/system_server.te
@@ -0,0 +1 @@
+allow system_server self:process execmem;