cyrus-sasl2: disable parallel make
cyrus-sasl2: disable parallel make

I just want to disable parallel make in plugin directory
to avoid adding "SASL_CANONUSER_PLUG_INIT( ldapdb )" to ldapdb_init.c
multiple times.
Adding ".NOTPARALLEL:" to plugins/Makefile.am solves the problem
but it is not common in poky's recipe.

Signed-off-by: Toshiko YOSHIDA <311de952d79aff7d5c68e1437a41a732e1c05c82@toshiba.co.jp>

tienlee/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,tienlee/meta-debian,tienlee/meta-debian,tienlee/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,tienlee/meta-debian,meta-debian/meta-debian,tienlee/meta-debian