sudo has somewhat special file installation logic and installs the modules and
libraries to $libexecdir/sudo, with special handling for the case when
libexecdir already contains /sudo (which it does by default in current oe-core
where libexecdir=$libdir/$PN).
As setting libexecdir to /usr/libexec should work, add both possibilities to
FILES to be sure the right files are captured, and add INSANE_SKIP for the
libdir warning that libraries are outside of /usr/lib/ (arguably, this should be
fixed in insane).
Signed-off-by: Ross Burton <ross.burton@intel.com>
