compat-wireless: increase the code-metric percent resolution two fold

compat-wireless: increase the code-metric percent resolution two fold

If we only carry one patch then the two decimals will
not cut it to reflect a real percentage of all the code we
are pulling from upstream so use two more decimals.

This is what I get now:

compat-wireless code metrics

    498409 - Total upstream lines of code being pulled
      1398 - backport code changes
      1167 - backport code additions
       231 - backport code deletions
      5748 - backport from compat module
      7146 - total backport code
    1.4338 - % of code consists of backport work
        13 - Code changes posted but not yet merged
         8 - Code additions posted but not yet merged
         5 - Code deletions posted but not yet merged
    0.0026 - % of code not yet merged

Base tree: linux-next.git
Base tree version: next-20100615
compat-wireless release: compat-wireless-2010-06-10-10-g0c66bc8

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>