configure.ac: support both AC_CONFIG_MACRO_DIR and AC_CONFIG_MACRO_DIRS
configure.ac: support both AC_CONFIG_MACRO_DIR and AC_CONFIG_MACRO_DIRS

Signed-off-by: Dmitry Eremin-Solenikov <b6edad08270b2e4ffbcb0879e25a0e29a48c5275@gmail.com>

lumag/emv-tools