sepolicy_vndr: add permissions for keymint service

Allow hal_keymint_qti to read vendor_disable_spu_prop.

Change-Id: I81f505d096fba9b0289338e6e8ac181bb21fadfc
diff --git a/generic/vendor/common/hal_keymint_qti.te b/generic/vendor/common/hal_keymint_qti.te
index c87bf34..2a6a82c 100644
--- a/generic/vendor/common/hal_keymint_qti.te
+++ b/generic/vendor/common/hal_keymint_qti.te
@@ -34,6 +34,7 @@
 dontaudit vendor_hal_keymint_qti firmware_file:dir search;
 
 get_prop(vendor_hal_keymint_qti, vendor_tee_listener_prop)
+get_prop(vendor_hal_keymint_qti, vendor_disable_spu_prop)
 
 allow vendor_hal_keymint_qti tee_device:chr_file rw_file_perms;