gettimeofday.c: use the same type as in header

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/sysdeps/linux/common/gettimeofday.c

@@ -10,9 +10,5 @@
 #include <sys/syscall.h>
 #include <sys/time.h>
 
-#ifdef __USE_BSD
-_syscall2(int, gettimeofday, struct timeval *, tv, struct timezone *, tz)
-#else
-_syscall2(int, gettimeofday, struct timeval *, tv, void *, tz)
-#endif
+_syscall2(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
 libc_hidden_def(gettimeofday)