ARM: dts: msm: Enable io-expander sx1509q on APQ8017

APQ8017 supports ethernet over SPI which requires
io-expander sx1509q to be present. Make changes to
enable sx1509q device node.

Change-Id: I04d0c37eb35897e803b6bc95e9101fad5c8a7430
Acked-by: Zakir Syed <zhossain@qti.qualcomm.com>
Signed-off-by: Vijay Navnath Kamble <vkambl@codeaurora.org>
Signed-off-by: Utkarsh Saxena <usaxena@codeaurora.org>