split board-info.txt into AOSP and non-AOSP versions

Change-Id: Idbfb10b2dd6540f027f2ab44fef8f056998eeadf
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 1a92e94..9f9d389 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -15,5 +15,10 @@
 # Use the non-open-source part, if present
 -include vendor/samsung/maguro/BoardConfigVendor.mk
 
+# Use the open-source board-info file if none was set by the vendor
+# config.
+TARGET_BOARD_INFO_FILE ?= device/samsung/maguro/board-info.txt
+
 # Use the part that is common between all tunas
 include device/samsung/tuna/BoardConfig.mk
+
diff --git a/board-info.txt b/board-info.txt
index f5daa6c..0328360 100644
--- a/board-info.txt
+++ b/board-info.txt
@@ -1,3 +1,6 @@
+# This is the open-source version of board-info.txt; it should contain
+# version of the radio and bootloader that are available to the
+# public.
 require board=tuna
 require version-bootloader=PRIMEKJ10|PRIMEKK15|PRIMEKL01|PRIMELA01
 require version-baseband=I9250XXKK6|I9250XXLA1|9250XXLA2