src: Export virDomainMemoryAccessType*String

These are already exported at header file level because of
VIR_ENUM_DECL being in numa_conf.h. However, they are not being
exported at object level because of missing libvirt_private.syms
record.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>

src/libvirt_private.syms

@@ -718,6 +718,8 @@ virNodeDeviceEventUpdateNew;
 
 
 # conf/numa_conf.h
+virDomainMemoryAccessTypeFromString;
+virDomainMemoryAccessTypeToString;
 virDomainNumaCheckABIStability;
 virDomainNumaEquals;
 virDomainNumaFree;