Hardwareinfo: remove platform sign key

Sign with default key

Test: manually, connect to wifi, reboot and check logcat, no new error
      message after apply patch
      adb logcat |egrep "Hardware|System.err"
Bug: 162295589
Signed-off-by: Denny cy Lee <dennycylee@google.com>
Change-Id: Iafb8f978981a03020974804f121f04aec7bf334f
Merged-in: Iafb8f978981a03020974804f121f04aec7bf334f
diff --git a/vendor/qcom/common/seapp_contexts b/vendor/qcom/common/seapp_contexts
index 5581229..c34496a 100644
--- a/vendor/qcom/common/seapp_contexts
+++ b/vendor/qcom/common/seapp_contexts
@@ -1,7 +1,7 @@
 user=radio seinfo=platform name=.dataservices domain=dataservice_app type=radio_data_file levelFrom=user
 
 # Hardware Info Collection
-user=_app seinfo=platform name=com.google.android.hardwareinfo domain=hardware_info_app type=app_data_file levelFrom=user
+user=_app isPrivApp=true name=com.google.android.hardwareinfo domain=hardware_info_app type=app_data_file levelFrom=user
 
 user=radio isPrivApp=true seinfo=platform name=com.google.RilConfigService domain=ril_config_service_app type=app_data_file levelFrom=all