MLK-20940-4 ARM64: defconfig: Add RPBUS and RPMSG config

Enable RPBUS(i2c-rpmsg-imx.c) and RPMSG functions.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
(cherry picked from commit f47caf1254b93ffe7caca003f5d8f60f5b9070a0)

arch/arm64/configs/defconfig

@@ -349,6 +349,7 @@ CONFIG_I2C_UNIPHIER_F=y
 CONFIG_I2C_RCAR=y
 CONFIG_I2C_CROS_EC_TUNNEL=y
 CONFIG_XEN_I2C_BACKEND=y
+CONFIG_I2C_RPBUS=y
 CONFIG_SPI=y
 CONFIG_SPI_BCM2835=m
 CONFIG_SPI_BCM2835AUX=m
@@ -690,6 +691,7 @@ CONFIG_BCM2835_MBOX=y
 CONFIG_ROCKCHIP_IOMMU=y
 CONFIG_ARM_SMMU=y
 CONFIG_ARM_SMMU_V3=y
+CONFIG_RPMSG=y
 CONFIG_RPMSG_QCOM_SMD=y
 CONFIG_RASPBERRYPI_POWER=y
 CONFIG_QCOM_SMEM=y