mips32/mips64: Suppress race condition error.

On MIPS architecture helgrind is showing race condition error in printf if
the printf is first time called from the child thread. If we call printf 
from the main for the first time we will suppress this error on mips.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13749 a5019735-40e9-0310-863c-91ae7b9d1cf9
mips32: update ignore list.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13750 a5019735-40e9-0310-863c-91ae7b9d1cf9