Rename surfaceflinger properties' contexts

Cleaning up exported*_system_prop and moving surfaceflinger properties
to new property contexts.

Bug: 152468529
Bug: 154885206
Test: boot cf_x86 and crosshatch
Change-Id: I7f8a684e9cbabce2f55a5292d7b2283ac0716cd9
diff --git a/private/compat/27.0/27.0.ignore.cil b/private/compat/27.0/27.0.ignore.cil
index 3fdb0b4..19cd7fb 100644
--- a/private/compat/27.0/27.0.ignore.cil
+++ b/private/compat/27.0/27.0.ignore.cil
@@ -149,6 +149,7 @@
     statsdw_socket
     storaged_data_file
     super_block_device
+    surfaceflinger_color_prop
     surfaceflinger_prop
     staging_data_file
     system_boot_reason_prop