Sepolicy label for Keymint HAL

Bug: 199435757
Test: boot Trusty emulator
Change-Id: I1cef3f0aff3834d27cc32e873da07428dc2433bd
diff --git a/sepolicy/file_contexts b/sepolicy/file_contexts
index 7c72e1f..9e27b2e 100644
--- a/sepolicy/file_contexts
+++ b/sepolicy/file_contexts
@@ -10,3 +10,4 @@
 /vendor/bin/hw/android.hardware.confirmationui@1.0-service.trusty       u:object_r:hal_confirmationui_default_exec:s0
 /vendor/bin/hw/android.hardware.gatekeeper@1.0-service.trusty           u:object_r:hal_gatekeeper_default_exec:s0
 /vendor/bin/hw/android.hardware.keymaster@4.0-service.trusty            u:object_r:hal_keymaster_default_exec:s0
+/vendor/bin/hw/android.hardware.security.keymint-service.trusty         u:object_r:hal_keymint_default_exec:s0