ARM: exynos_defconfig: Enable serial bus and BCM HCIUART drivers

Enable serial bus and BCM HCIUART Bluetooth drivers available on the
Exynos3250-based Rinato board.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/configs/exynos_defconfig

@@ -69,6 +69,7 @@ CONFIG_BT_HCIUART=m
 CONFIG_BT_HCIUART_BCSP=y
 CONFIG_BT_HCIUART_ATH3K=y
 CONFIG_BT_HCIUART_INTEL=y
+CONFIG_BT_HCIUART_BCM=y
 CONFIG_BT_HCIUART_AG6XX=y
 CONFIG_BT_HCIUART_MRVL=y
 CONFIG_BT_HCIBCM203X=m
@@ -133,6 +134,7 @@ CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_SAMSUNG=y
 CONFIG_SERIAL_SAMSUNG_CONSOLE=y
+CONFIG_SERIAL_DEV_BUS=y
 CONFIG_HW_RANDOM=y
 CONFIG_TCG_TPM=y
 CONFIG_TCG_TIS_I2C_INFINEON=y