qualcommax: add ipq60xx support

qualcommax: add ipq60xx support

Introduce support for the Qualcomm IPQ60xx SoC. WiFi support still has
to be handled and correctly fix hence this is currently marked as
source-only to have a solid base to progress on correct support of this
and hope Upstream QUIC publish newers ath11k drivers for this SoC.

Co-developed-by: Robert Marko <[email protected]>
Signed-off-by: Robert Marko <[email protected]>
Signed-off-by: Mantas Pucka <[email protected]>
[ improve commit description, add SoB for Robert, make it source-only ]
Signed-off-by: Christian Marangi <[email protected]>