e2fsprogs: add a patch to link against SEM_INIT libs

This patch is needed to make e2fsprogs being linked against
SEM_INIT libraries. In this particular case, it causes the
Makefiles to add -lpthread. Without that, all binaries crash
at startup, at least on x86.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>