The existing apiserver chart supports volume overrides for the anchor
daemonset, but not for the apiserver static pod itself. The feature to
allow volume overrides in the apiserver-webhook chart was never fully
implemented.
This changes allows volume overrides via values.yaml for both charts,
and provides a more complete audit example that includes mounting the
audit log destination as a host path volume.
Change-Id: I27ccf77671a190e8cb6b66d8a9b13c2cde6c9a45