ARM: multi_v7_defconfig: Enable st_remoteproc driver.

The st231 remote coprocessors are found on all STi chipsets.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

arch/arm/configs/multi_v7_defconfig

@@ -824,6 +824,7 @@ CONFIG_ROCKCHIP_IOMMU=y
 CONFIG_TEGRA_IOMMU_GART=y
 CONFIG_TEGRA_IOMMU_SMMU=y
 CONFIG_REMOTEPROC=m
+CONFIG_ST_REMOTEPROC=m
 CONFIG_PM_DEVFREQ=y
 CONFIG_ARM_TEGRA_DEVFREQ=m
 CONFIG_MEMORY=y