Revert "boards: quark_d2000_crb: Remove adc support"

This reverts commit b0d3b560238fac09e63064620de9ff820cf8cc47.

Since we now have a working ADC driver for Quark D2000,
re-add the tag.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
1 file changed