init: export all androidboot cmd line values as ro.boot.xx props

Also, clean up how we initialize the ro.xx properties and process
the kernel command line.

Change-Id: Iedda6c90e31340a189171a44b2767480403354f7
Signed-off-by: Dima Zavin <dima@android.com>
diff --git a/init/property_service.h b/init/property_service.h
index 37c2788..b9d1bf6 100644
--- a/init/property_service.h
+++ b/init/property_service.h
@@ -20,7 +20,8 @@
 #include <stdbool.h>
 
 extern void handle_property_set_fd(void);
-extern void property_init(bool load_defaults);
+extern void property_init(void);
+extern void property_load_boot_defaults(void);
 extern void load_persist_props(void);
 extern void start_property_service(void);
 void get_property_workspace(int *fd, int *sz);