A couple more leak supps for OSX10.7.  Fixes #307557.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13636 a5019735-40e9-0310-863c-91ae7b9d1cf9
PPC32/64: Allow 16 byte icache and dcache lines.
Partial fix for #308135.  (christophe.leroy@c-s.fr)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13637 a5019735-40e9-0310-863c-91ae7b9d1cf9