Add new version of firmware for wl18xx
Add new version of firmware for wl18xx

Download the new version of firmware from meta-ti

Signed-off-by: Sicong Jia <c7af7adcfdf71a00bcbab2a54b63c23bd839dd93@gumstix.com>
gumstix/meta-gumstix-extras,gumstix/meta-gumstix-extras,gumstix/meta-gumstix-extras