libcacard: fix missing symbol in libcacard.so
libcacard: fix missing symbol in libcacard.so

Before patch:
$ make libcacard.la
$ nm ./libcacard/.libs/libcacard.so.0.0.0 | grep " U " | \
    egrep -v "(g_)|(GLIBC)|(SECMOD)|(PK11)|(CERT)|(NSS)|(PORT)|(PR)"
                 U error_set

Signed-off-by: Alon Levy <816c907b754fa7b5d4bb5eb91e0fc01e5510e64d@redhat.com>
Signed-off-by: Paolo Bonzini <69d3ebcf5ee4e7f05a50dc23cd96655b730804b4@redhat.com>

elmarco/libcacard,elmarco/libcacard,SPICE/libcacard,SPICE/libcacard