UBUNTU: SAUCE: Raise the default console 'quiet' level to 2

In the interests of providing a clean boot experience, i.e., a blank screen
before X starts, supress noisy driver messages.

See https://lists.ubuntu.com/archives/kernel-team/2009-October/007476.html
for the original diatribe.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>