xen: Add a missing break to the handling of XEN_DOMCTL_max_vcpus
found by Coverity's checker.
Also fix another missing break XEN_SYSCTL_numainfo found by via a
by-eye check. This one is at the end of the switch so it is benign.
Patch by Ian Campbell <ian.campbell@citrix.com>.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13251 a5019735-40e9-0310-863c-91ae7b9d1cf9
Fix two asserts that Coverity's checker diagnosed as having side effects.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13252 a5019735-40e9-0310-863c-91ae7b9d1cf9