Copy file while build android

Example: copy following file to folder: system/bin
addition_bkav/tinymix_config/tinymix_config
addition_bkav/touchButton/touchButton
addition_bkav/touchButton/touchButton.sh


/home/anhpx/WORK/acs-v3.1-bsp-4.1.2/device/ti/beagleboard/device.mk

PRODUCT_COPY_FILES := \
device/ti/beagleboard/init.omap3beagleboard.rc:root/init.omap3beagleboard.rc \
device/ti/beagleboard/vold.fstab:system/etc/vold.fstab \
device/ti/beagleboard/media_codecs.xml:system/etc/media_codecs.xml \
device/ti/omap3evm/audio_policy.conf:system/etc/audio_policy.conf \
- device/ti/beagleboard/mixer_paths.xml:system/etc/mixer_paths.xml
+ device/ti/beagleboard/mixer_paths.xml:system/etc/mixer_paths.xml \
+ addition_bkav/tinymix_config/tinymix_config:system/bin/tinymix_config \
+ addition_bkav/touchButton/touchButton:system/bin/touchButton \
+ addition_bkav/touchButton/touchButton.sh:system/bin/touchButton.sh