Use proper header for OpenBSD PPC CPU detection
diff --git a/src/cpuinfo/SDL_cpuinfo.c b/src/cpuinfo/SDL_cpuinfo.c
index 8eb942b..8221f77 100644
--- a/src/cpuinfo/SDL_cpuinfo.c
+++ b/src/cpuinfo/SDL_cpuinfo.c
@@ -51,7 +51,7 @@
#if defined(__MACOSX__) && (defined(__ppc__) || defined(__ppc64__))
#include <sys/sysctl.h> /* For AltiVec check */
#elif defined(__OpenBSD__) && defined(__powerpc__)
-#include <sys/param.h>
+#include <sys/types.h>
#include <sys/sysctl.h> /* For AltiVec check */
#include <machine/cpu.h>
#elif defined(__FreeBSD__) && defined(__powerpc__)