Allow ClearKey hal to access allocator hal

Bug: 147449315
Test: VtsHalDrmV1_2Target
Change-Id: I5ee7376c8872ab8cb15ef358a061459ed2036d66
diff --git a/vendor/qcom/common/hal_drm_clearkey.te b/vendor/qcom/common/hal_drm_clearkey.te
index 6d4a815..7353a37 100644
--- a/vendor/qcom/common/hal_drm_clearkey.te
+++ b/vendor/qcom/common/hal_drm_clearkey.te
@@ -7,3 +7,4 @@
 hal_server_domain(hal_drm_clearkey, hal_drm)
 
 vndbinder_use(hal_drm_clearkey);
+allow hal_drm_clearkey hal_allocator_server:fd use;