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/29.0/29.0.cil b/private/compat/29.0/29.0.cil
index 26a2d34..680d511 100644
--- a/private/compat/29.0/29.0.cil
+++ b/private/compat/29.0/29.0.cil
@@ -1201,7 +1201,9 @@
 (typeattributeset exported2_config_prop_29_0 (exported2_config_prop systemsound_config_prop))
 (typeattributeset exported2_default_prop_29_0 (exported2_default_prop))
 (typeattributeset exported2_radio_prop_29_0 (exported2_radio_prop))
-(typeattributeset exported2_system_prop_29_0 (exported2_system_prop))
+(typeattributeset exported2_system_prop_29_0
+  ( exported2_system_prop
+    surfaceflinger_color_prop))
 (typeattributeset exported2_vold_prop_29_0 (exported2_vold_prop vold_config_prop))
 (typeattributeset exported3_default_prop_29_0 (exported3_default_prop))
 (typeattributeset exported3_radio_prop_29_0 (exported3_radio_prop))