fs_get_stats: move fs_config to libcutils
fs_get_stats: move fs_config to libcutils

Bug: 19908228
Change-Id: I668bf8e11b09ccc9c298382e54208f531844b0c5

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build