SudoRunCommand: allow per call control of sudo strictness.
SudoRunCommand: allow per call control of sudo strictness.

There are cases where SudoRunCommand will be invoked, and it's known
and allowed for it to be used in a non strict context.

As such, add an option suppressing the internal QA checks.

BUG=None
TEST=n/a

Change-Id: If1072951f47bd0b8681864606d79ecbbb4444093
Reviewed-on: https://gerrit.chromium.org/gerrit/15985
Reviewed-by: Matt Tennant <46e612415b446ccde19638e4035892001c237942@chromium.org>
Commit-Ready: Brian Harring <fdc2d0a2e2340b623587cee5ea8dff425d1eb1f3@chromium.org>
Tested-by: Brian Harring <fdc2d0a2e2340b623587cee5ea8dff425d1eb1f3@chromium.org>

zhang0137/chromite,zhang0137/chromite,chadversary/chromiumos.chromite,coreos/chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,zhang0137/chromite,chadversary/chromiumos.chromite,coreos/chromite,coreos/chromite