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/transport.c b/fastbootd/transport.c
index 19a705c..ce8f9d0 100644
--- a/fastbootd/transport.c
+++ b/fastbootd/transport.c
@@ -56,14 +56,14 @@
 
     buffer = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
     if (buffer == NULL) {
-        D(ERR, "mmap(%u) failed: %d %s", len, errno, strerror(errno));
+        D(ERR, "mmap(%zu) failed: %d %s", len, errno, strerror(errno));
         goto err;
     }
 
     while (n < len) {
         ret = thandle->transport->read(thandle, buffer + n, len - n);
         if (ret <= 0) {
-            D(WARN, "transport read failed, ret=%d %s", ret, strerror(-ret));
+            D(WARN, "transport read failed, ret=%zd %s", ret, strerror(-ret));
             break;
         }
         n += ret;