svm: Only include sys/user on Linux

Type: improvement
Change-Id: Idb318eb386617013015c43153bf0bd92fa28b9b6
Signed-off-by: Tom Jones <thj@freebsd.org>
diff --git a/src/svm/svm_common.h b/src/svm/svm_common.h
index e3aaba9..0e19ffd 100644
--- a/src/svm/svm_common.h
+++ b/src/svm/svm_common.h
@@ -23,7 +23,9 @@
 #include <stdint.h>
 #endif /* __FreeBSD__ */
 #include <pthread.h>
+#ifdef __linux__
 #include <sys/user.h>
+#endif /* __linux__ */
 #include <vppinfra/clib.h>
 #include <vppinfra/types.h>