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: NManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: NVinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/20200622222747.717306-7-bjorn.andersson@linaro.orgSigned-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

arch/arm64/configs/defconfig

@@ -835,6 +835,7 @@ CONFIG_IMX_MBOX=y
 CONFIG_PLATFORM_MHU=y
 CONFIG_BCM2835_MBOX=y
 CONFIG_QCOM_APCS_IPC=y
+CONFIG_QCOM_IPCC=y
 CONFIG_ROCKCHIP_IOMMU=y
 CONFIG_TEGRA_IOMMU_SMMU=y
 CONFIG_ARM_SMMU=y