Update dependencies on openSUSE

openSUSE 12.3 comes with the DHCP lease utilities in the dnsmasq-utils
package.

Also drop the gcc dependency in n-api (like it was done for debian, see
e9e80f9)

Change-Id: Id045674946d7856f6364c2357f3e126b05651461
Merge "Update dependencies on openSUSE"