android-tools: add recipe from AOSP tag android-5.1.1_r37

Android tools offer filsystem tools for creating sparse images,
so package them in package of its own.

This recipe is re-worked and not a straight import from meta-shr.

It's built from AOSP source. I've dropped the ubuntu-ism which will
never be upstreamed.

The intent is to be closer to the upstream AOSP source code and be able
to update the recipe regularly.

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

meta-oe/recipes-devtools/android-tools/android-tools/use-capability.patch

@@ -0,0 +1,19 @@
+Subject: use linux/capability.h on linux systems too
+Author: Loïc Minier <loic.minier@ubuntu.com>
+
+Upstream-Status: Inappropriate
+---
+ system/core/include/private/android_filesystem_config.h |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/system/core/include/private/android_filesystem_config.h
++++ b/system/core/include/private/android_filesystem_config.h
+@@ -27,7 +27,7 @@
+ #include <sys/types.h>
+ #include <stdint.h>
+ 
+-#ifdef HAVE_ANDROID_OS
++#if defined(HAVE_ANDROID_OS) || defined(__linux__)
+ #include <linux/capability.h>
+ #else
+ #include "android_filesystem_capability.h"