Include sys/time.h for gettimeofday. May fix the build on mips64.

emulators/retroarch/patches/patch-libretro-common_features_features_cpu_c

@@ -1,4 +1,4 @@
-$OpenBSD: patch-libretro-common_features_features_cpu_c,v 1.1 2019/08/09 15:55:52 cwen Exp $
+$OpenBSD: patch-libretro-common_features_features_cpu_c,v 1.2 2020/04/12 04:34:19 bentley Exp $
 
 ppc fix for:
 features_cpu.c:(.text+0x20): undefined reference to `__mftb'
@@ -6,7 +6,15 @@ features_cpu.c:(.text+0x20): undefined reference to `__mftb'
 Index: libretro-common/features/features_cpu.c
 --- libretro-common/features/features_cpu.c.orig
 +++ libretro-common/features/features_cpu.c
-@@ -39,7 +39,7 @@
+@@ -22,6 +22,7 @@
+ 
+ #include <stdio.h>
+ #include <stdlib.h>
++#include <sys/time.h>
+ 
+ #if defined(_WIN32)
+ #include <direct.h>
+@@ -39,7 +40,7 @@
  #include <windows.h>
  #endif