i2c: meson: reduce timeout

The datasheet doesn't specify a suggested timeout and 500ms seems very
long: reduce it to 100ms.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
1 file changed