Fix conflict error when enable multilib.

file /usr/include/bits/pthread_stack_min.h conflicts between attempted installs of libc6-dev-2.34-r0.aarch64 and lib32-libc6-dev-2.34-r0.armv7ahf_neon

Signed-off-by: Lei Maohui <leimaohui@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>