Enable BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED for full-treble products

BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED can be true only if early-mount of
partitions is supported. But the early-mount must be supported for full
treble products, and so BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED should be
set by default for full treble products.

Additionally this CL sets ro.vndk.version regardless of
BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED.

Bug: 73078796
Test: tested with walleye
Change-Id: Icfe1b6957b55b0f9261d34d7e92db3dc5073cb58
diff --git a/core/config.mk b/core/config.mk
index 488cf9c..5e81771 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -797,6 +797,14 @@
 
 requirements :=
 
+# BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED can be true only if early-mount of
+# partitions is supported. But the early-mount must be supported for full
+# treble products, and so BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED should be set
+# by default for full treble products.
+ifeq ($(PRODUCT_FULL_TREBLE),true)
+  BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED ?= true
+endif
+
 # If PRODUCT_USE_VNDK is true and BOARD_VNDK_VERSION is not defined yet,
 # BOARD_VNDK_VERSION will be set to "current" as default.
 # PRODUCT_USE_VNDK will be true in Android-P or later launching devices.