Rename wks file and use variable ${DISTRO} and ${MACHINE}
Input of this commit comr from Pull Request: #7
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
WIC are supported only for disco and eval machine.
To enable it uncomment the preconized line on specific
machine.
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>