build: fs_config_generate must open file in binary mode
build: fs_config_generate must open file in binary mode

Bug: 19908228
Change-Id: I2361b8af90b3729deb438e6a7a7179de12680b65

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