Merge change Ia0a40883 into eclair

* changes:
  Modify the binder to request 1M - 2 pages instead of 1M.  The backing store in the kernel requires a guard page, so 1M allocations fragment memory very badly.  Subtracting a couple of pages so that they fit in a power of two allows the kernel to make more efficient use of its virtual address space.

libs/binder/ProcessState.cpp

@@ -41,7 +41,7 @@
 #include <sys/mman.h>
 #include <sys/stat.h>
 
-#define BINDER_VM_SIZE (1*1024*1024)
+#define BINDER_VM_SIZE ((1*1024*1024) - (4096 *2))
 
 static bool gSingleProcess = false;