Label ro.build.version.known_codenames in Microdroid

Bug: 236602028
Test: atest ComposHostTestCases
Change-Id: I7a479f32f58964b60468b7d19c9cd9f47a334741
diff --git a/microdroid/system/private/property_contexts b/microdroid/system/private/property_contexts
index 2b95520..57f28ae 100644
--- a/microdroid/system/private/property_contexts
+++ b/microdroid/system/private/property_contexts
@@ -116,6 +116,7 @@
 ro.build.version.release        u:object_r:build_prop:s0 exact string
 ro.build.version.sdk            u:object_r:build_prop:s0 exact int
 ro.build.version.security_patch u:object_r:build_prop:s0 exact string
+ro.build.version.known_codenames u:object_r:build_prop:s0 exact string
 ro.debuggable                   u:object_r:build_prop:s0 exact bool
 ro.product.cpu.abilist          u:object_r:build_prop:s0 exact string
 ro.adb.secure                   u:object_r:build_prop:s0 exact bool