Enable support for Black Sesame Technologies (BST) platform and drivers
in the ARM64 defconfig:

- CONFIG_ARCH_BST: Enable BST SoC platform support
- CONFIG_MMC_SDHCI_BST: Enable BST C1200 DWCMSHC SDHCI controller driver

This enables eMMC/SD card access on Black Sesame Technologies C1200 series
SoCs. The SDHCI driver provides hardware-specific implementation for the
Synopsys DesignWare Mobile Storage Host Controller integrated in BST SoCs.

Signed-off-by: Ge Gordon <gordon.ge@bst.ai>
Signed-off-by: Albert Yang <redacted>
---
Change for v3:
- Also enable CONFIG_ARCH_BST in arm64 defconfig (in addition to
CONFIG_MMC_SDHCI_BST)

Change for v2:
- No changes.
---
 arch/arm64/configs/defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 897fc686e6a9..8daf8cf3dc97 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig

@@ -45,6 +45,7 @@ CONFIG_ARCH_BCMBCA=y
 CONFIG_ARCH_BRCMSTB=y
 CONFIG_ARCH_BERLIN=y
 CONFIG_ARCH_BLAIZE=y
+CONFIG_ARCH_BST=y
 CONFIG_ARCH_EXYNOS=y
 CONFIG_ARCH_SPARX5=y
 CONFIG_ARCH_K3=y

@@ -1187,6 +1188,7 @@ CONFIG_MMC_SDHCI_CADENCE=y
 CONFIG_MMC_SDHCI_ESDHC_IMX=y
 CONFIG_MMC_SDHCI_TEGRA=y
 CONFIG_MMC_SDHCI_F_SDH30=y
+CONFIG_MMC_SDHCI_BST=y
 CONFIG_MMC_MESON_GX=y
 CONFIG_MMC_SDHCI_MSM=y
 CONFIG_MMC_SPI=y

-- 
2.43.0