defconfig: arm64: Enable EUD for SDM855 SoC

The EUD (Embedded USB Debugger) is a mini-USB hub implemented
on chip to support the USB-based debug and trace capabilities.
Enable config QCOM_EUD flag for sdm855 SoC.

Change-Id: I33d55d9e729eac5783aab3d6b1090a59dd487190
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>