Code review comment for lp:~alan-griffiths/mir/fix-1358698

It looks like the branch is to blame but I can't tell why...

/usr/lib/gcc-cross/arm-linux-gnueabihf/4.9/../../../../arm-linux-gnueabihf/bin/ld: cannot find -landroid-properties
collect2: error: ld returned 1 exit status
src/platform/graphics/android/CMakeFiles/mirplatformgraphicsandroid.dir/build.make:117: recipe for target 'lib/android/libmirplatformgraphics.so' failed
make[2]: *** [lib/android/libmirplatformgraphics.so] Error 1