defconfig: qcs405: Enable AR803x PHY config

Enable AR803x PHY support for Ethernet for perf.
This also enable ptp config.
KS8851 PHY is not needed for qcs405 removed
it.

Change-Id: If0fca7b2247324915d3427f89a1fac22d5ec6b99
Acked-by: Suraj Jaiswal <c_surajj@qti.qualcomm.com>
Signed-off-by: Mohammed Javid <mjavid@codeaurora.org>