Add missing include for MAX_SEGMENTS define.

Change-Id: I69031c3f0fdd363058c159a8ee008b18469e81c1

av1/decoder/inspection.h

diff --git a/av1/decoder/inspection.h b/av1/decoder/inspection.h
index 44132d5..73faa68 100644
--- a/av1/decoder/inspection.h
+++ b/av1/decoder/inspection.h
@@ -18,6 +18,7 @@
 #if CONFIG_ACCOUNTING
 #include "av1/decoder/accounting.h"
 #endif
+#include "./av1/common/seg_common.h"
 
 typedef void (*aom_inspect_cb)(void *decoder, void *data);