arm64: defconfig: Enable Qualcomm IPCC driver

arm64: defconfig: Enable Qualcomm IPCC driver

The IPCC hardware block provides a mechanism for triggering interrupts
between co-processors in recent Qualcomm SoCs. This is used as basis for
most form of communication between co-processors, so enable this
support.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200622222747.717306-7-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>