Map Rust KeyMint to same SELinux policy as C++

Allow the Rust and C++ implementations of the KeyMint HAL service to be
toggled easily, by mapping them to the same SELinux policy.

Bug: 197891150
Bug: 225036046
Test: VtsAidlKeyMintTargetTest with local changes, TreeHugger
Change-Id: I37f8016240097381410903f0f326dc16fc24db1e
diff --git a/whitechapel_pro/file_contexts b/whitechapel_pro/file_contexts
index d0a92a9..4c5f92e 100644
--- a/whitechapel_pro/file_contexts
+++ b/whitechapel_pro/file_contexts
@@ -18,6 +18,7 @@
 /vendor/bin/init\.uwb\.calib\.sh                                            u:object_r:vendor_uwb_init_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\.security\.keymint-service\.trusty         u:object_r:hal_keymint_default_exec:s0
+/vendor/bin/hw/android\.hardware\.security\.keymint-service\.rust\.trusty   u:object_r:hal_keymint_default_exec:s0
 /vendor/bin/hw/vendor\.google\.radioext@1\.0-service                        u:object_r:hal_radioext_default_exec:s0
 /vendor/bin/hw/android\.hardware\.contexthub-service\.generic               u:object_r:hal_contexthub_default_exec:s0
 /vendor/bin/hw/android\.hardware\.boot@1\.2-service-gs201                   u:object_r:hal_bootctl_default_exec:s0