Move bootimage props to vendor/build.prop

Prior to this change the properties were in system/etc/default.prop.
These properties are device-specific and don't really belong on the
/system partition.

I anticipate further change to these properties in the future:
- pruning down the set of properties, as the .product. props
  don't make much sense for the boot image
- moving them to the ramdisk instead

Bug: 130025216
Test: boot into recovery, observe title (shows bootimage fingerprint)
Change-Id: I9e92c1ec7068ae18fa0d709c77eac22a6b88c3d8
diff --git a/core/Makefile b/core/Makefile
index d9bd6f1..040b8e1 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -280,10 +280,6 @@
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_DEFAULT_PROPERTIES), \
 	    echo "$(line)" >> $@;)
-	$(hide) echo "#" >> $@; \
-	        echo "# BOOTIMAGE_BUILD_PROPERTIES" >> $@; \
-	        echo "#" >> $@;
-	$(hide) $(call generate-common-build-props,bootimage,$@)
 	$(hide) build/make/tools/post_process_props.py $@
 ifdef property_overrides_split_enabled
 	$(hide) mkdir -p $(TARGET_ROOT_OUT)
@@ -528,6 +524,10 @@
 	$(hide) echo ro.product.board="$(TARGET_BOOTLOADER_BOARD_NAME)">>$@
 	$(hide) echo ro.board.platform="$(TARGET_BOARD_PLATFORM)">>$@
 	$(hide) $(call generate-common-build-props,vendor,$@)
+	$(hide) echo "#" >> $@; \
+	        echo "# BOOTIMAGE_BUILD_PROPERTIES" >> $@; \
+	        echo "#" >> $@;
+	$(hide) $(call generate-common-build-props,bootimage,$@)
 ifdef property_overrides_split_enabled
 	$(hide) echo "#" >> $@; \
 	        echo "# ADDITIONAL VENDOR BUILD PROPERTIES" >> $@; \