libcacard: stop including qemu-common.h

This is a small step towards making libcacard standalone.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff --git a/libcacard/vreader.c b/libcacard/vreader.c
index 0315dd8..9725f46 100644
--- a/libcacard/vreader.c
+++ b/libcacard/vreader.c
@@ -10,7 +10,9 @@
 #endif
 #define G_LOG_DOMAIN "libcacard"
 
-#include "qemu-common.h"
+#include "glib-compat.h"
+
+#include <string.h>
 
 #include "vcard.h"
 #include "vcard_emul.h"