Rename config.{h, mak} config-target.{h, mak}

Add config.h file that includes config-target.h and config-host.h

Patchworks-ID: 35193
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..516acee
--- /dev/null
+++ b/config.h
@@ -0,0 +1,3 @@
+
+#include "config-host.h"
+#include "config-target.h"