libnss-nis: upgrade 3.1 -> 3.2

Changelog:
* Do not call malloc_usable_size

Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>