ui/Fence: change the TIMEOUT_NEVER value to -1

#define ANDROID_FENCE_H

#include <stdint.h>

#include <limits.h>

#include <sys/types.h>

#include <ui/ANativeObjectBase.h>

    // TIMEOUT_NEVER may be passed to the wait method to indicate that it

    // should wait indefinitely for the fence to signal.

    enum { TIMEOUT_NEVER = UINT_MAX };

    enum { TIMEOUT_NEVER = -1 };

    // merge combines two Fence objects, creating a new Fence object that

    // becomes signaled when both f1 and f2 are signaled (even if f1 or f2 is