libarchive: Avoid mount.h conflict between kernel and glibc

glibc 2.36 implements fsconfig_command but it now conflicts with kernel
mount.h and there is no workaround, code in apps have to be adjusted to
use correct API see [1]

[1] https://sourceware.org/glibc/wiki/Release/2.36



Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>