system/core 64-bit cleanup.

This cleans up most of the size-related problems in system/core.
There are still a few changes needed for a clean 64-bit build,
but they look like they might require changes to things like the
fastboot protocol.

Change-Id: I1560425a289fa158e13e2e3173cc3e71976f92c0
diff --git a/fastbootd/commands.c b/fastbootd/commands.c
index d8a601f..063e1a6 100644
--- a/fastbootd/commands.c
+++ b/fastbootd/commands.c
@@ -29,6 +29,7 @@
  * SUCH DAMAGE.
  */
 
+#include <inttypes.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <sys/types.h>
@@ -319,7 +320,7 @@
         return;
     }
 
-    D(INFO, "writing %lld bytes to '%s'\n", sz, arg);
+    D(INFO, "writing %"PRId64" bytes to '%s'\n", sz, arg);
 
     if (flash_write(partition, phandle->download_fd, sz, header_sz)) {
         fastboot_fail(phandle, "flash write failure");