mkelfimage-native finds libz from host dir, not
from the staging directories.
Modify confiugre.ac to let makefile find libz
and zlib.h by CFLAGS and LDFLAGS.
[YOCTO #3547]
(From OE-Core rev: 4d0b2ca464cec9588178100b601eda96faec0ad7)
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>