Avoid ldconfig due to cross-compilation problems.

Otherwise, it cases problems on cbuild endianness != ctarget endianness
setups because /sbin/ldconfig expects elf header in the wrong endianness.

Signed-off-by: Andrey Mazo <ahippo@yandex.ru>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>