ath10k: enable ipq4019 device probe in ahb module

All the necessary patches to make wifi running (over AHB)
on ipq4019 SoC are ready now. It's good to enable
ipq4019 wifi device probing in ahb module and
remove work in progress debug print.

Device tree change is there in the public review by
below commit message
"qcom: ipq4019: add wifi nodes to ipq4019 SoC device tree"

Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com>
Signed-off-by: Raja Mani <rmani@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>