buildroot

quagga: security bump to version 0.9.20.1

Bump to version 0.9.20.1 to fix CVE-2012-0249, CVE-2012-0250 and
CVE-2012-0255.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>