image_types_edison: default IMAGE_NAME in flashall.sh
image_types_edison: default IMAGE_NAME in flashall.sh

Put IMAGE_BASENAME as default name in flashall.sh

Fixes: ostroproject/ostro-os#4

Signed-off-by: Alexander Kanevskiy <5ade54cadc9b8070838b81a3ca2f53d7aaac8db1@linux.intel.com>

yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp