spm-mm: Rename spm_private.h

Change-Id: Ie47009158032c2e8f35febd7bf5458156f334ead
Signed-off-by: Paul Beesley <paul.beesley@arm.com>
diff --git a/services/std_svc/spm_mm/spm_setup.c b/services/std_svc/spm_mm/spm_setup.c
index 7d03eb5..2ef35b7 100644
--- a/services/std_svc/spm_mm/spm_setup.c
+++ b/services/std_svc/spm_mm/spm_setup.c
@@ -18,7 +18,7 @@
 #include <plat/common/platform.h>
 #include <services/spm_mm_partition.h>
 
-#include "spm_private.h"
+#include "spm_mm_private.h"
 #include "spm_shim_private.h"
 
 /* Setup context of the Secure Partition */