Sepolicy for allocator hal.

Bug: 32123421
Test: full build/test of allocator hal using hidl_test
Change-Id: I253b4599b6fe6e7f4a2f5f55b34cdeed9e5d769b
diff --git a/private/hal_allocator.te b/private/hal_allocator.te
new file mode 100644
index 0000000..d185d49
--- /dev/null
+++ b/private/hal_allocator.te
@@ -0,0 +1 @@
+init_daemon_domain(hal_allocator)