mi: make private-mi.h include conditional on MI support

MI support was made optional, but lib.c still included private-mi.h
unconditionally.  Made include contitional based on MI support.

Signed-off-by: Broc Going <[email protected]>

Author: bgoing-micron-oss

libnvme/src/nvme/lib.c

@@ -24,7 +24,11 @@
 #include "cleanup.h"
 #include "cleanup-linux.h"
 #include "private.h"
+
+#ifdef CONFIG_MI
 #include "private-mi.h"
+#endif
+
 #include "compiler-attributes.h"
 
 static bool libnvme_mi_probe_enabled_default(void)