virfirmware: Expose and define autoptr for virFirmwareFree

This function frees a _virFirmware struct. So far, it doesn't
need to be called from outside of the module, but this will
change shortly. In the light of recent VIR_DEFINE_AUTOPTR_FUNC()
additions, do the same to virFirmwareFree().
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NCole Robinson <crobinso@redhat.com>

src/libvirt_private.syms

@@ -2040,6 +2040,7 @@ virFirewallDZoneExists;
 
 
 # util/virfirmware.h
+virFirmwareFree;
 virFirmwareFreeList;
 virFirmwareParse;
 virFirmwareParseList;

src/util/virfirmware.c

@@ -31,7 +31,7 @@
 VIR_LOG_INIT("util.firmware");
 
 
-static void
+void
 virFirmwareFree(virFirmwarePtr firmware)
 {
     if (!firmware)

src/util/virfirmware.h

@@ -31,6 +31,11 @@ struct _virFirmware {
 };
 
 
+void
+virFirmwareFree(virFirmwarePtr firmware);
+
+VIR_DEFINE_AUTOPTR_FUNC(virFirmware, virFirmwareFree);
+
 void
 virFirmwareFreeList(virFirmwarePtr *firmwares, size_t nfirmwares);