arm/dt: wcnss: Enable Iris XO auto detection for 8x10 platforms

WCNSS platform driver can detect the Iris card attached to it. And
if dynamic XO detection is enabled, then WCNSS driver can configure
the 48MHZ/19.2MHZ Iris XO configuration based on the Iris card
attached to it.

CRs-Fixed: 505294
Change-Id: I2019d628170936e105c56c916875d10e23ccd6c4
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>