arm64: dts: Add ipq8074 SoC and HK01 board support

Add initial device tree support for the Qualcomm IPQ8074 SoC and
HK01 evaluation board.

Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Manoharan Vijaya Raghavan <mraghava@codeaurora.org>
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>