Fix setting the dequeueBuffer timeout to -1

ANativeWindow::perform() is a variadic function. When passing -1 as the
variadic argument, it gets written as a 32-bit int. But it gets read in
Surface::dispatchSetDequeueTimeout() using va_arg(args, int64_t),
leaving the upper 32-bit undefined. Typically this is 0, and the value
becomes 4294967295. This gets interpreted as a finite timeout of ~4
seconds, instead of the intended infinite timeout represented by negative
values such as -1.

This change preserves the -1 value by casting it nsecs_t (an alias of
int64_t) prior to passing it to the variadic function.

This makes android.graphics.cts.BitmapTest#testDrawingHardwareBitmapNotLeaking
pass on Cuttlefish with SwANGLE, without the workaround of disabling
EGL_EXT_buffer_age support in ANGLE. Note the test typically passes in
less than 4 seconds, so it's not entirely clear why we were previously
observing timeouts (perhaps it does not represent wall clock time), but
the -1 value causes different code paths to be used in various places.

Bug: b/182521420
Test: android.view.inputmethod.cts.FocusHandlingTest#testNonFocusablePopupWindowDoesNotAffectImeVisibilityandroid.graphics.cts.BitmapTest#testDrawingHardwareBitmapNotLeaking
Change-Id: I94f83bb55e79799306b6e352d60a9ca9314bec20