[arm64] config fixup

drop CRYPTO_DEV_CAVIUM_ZIP due to crashes
add SERIAL_DEV_BUS, needed for HiKey bluetooth

debian/changelog

@@ -13,7 +13,7 @@ linux (4.14-1~exp1) UNRELEASED; urgency=medium
     - NUMA, ACPI_NUMA, CRASH_DUMP, VFIO, HOTPLUG_PCI, ACPI_CPPC_CPUFREQ,
       MMC_SDHCI_ACPI, PL330_DMA
   * [arm64] enable various server platform drivers
-    - NET_XGENE_V2, EDAC_THUNDERX, MMC_CAVIUM_THUNDER, CRYPTO_DEV_CAVIUM*,
+    - NET_XGENE_V2, EDAC_THUNDERX, MMC_CAVIUM_THUNDER,
       GPIO_XLP, I2C_XLP9XX, SPI_XLP, DRM_HISI_HIBMC, HISI_SAS_PCI,
       GPIO_WATCHDOG, ARM_SP805_WATCHDOG, ARM_SBSA_WATCHDOG, DW_WATCHDOG
   * [arm64] enable support for Marvell arm64 boards
@@ -24,6 +24,7 @@ linux (4.14-1~exp1) UNRELEASED; urgency=medium
     - PCIE_KIRIN, TEE, OPTEE, SND_I2S_HI6210_I2S, DRM_I2C_ADV7511_AUDIO,
       CMA, USB_ISP176, USB_CHIPIDEA_ULPI, USB_DWC3_ULPI, NOP_USB_XCEIV
       USB_ULPI, RPMSG_QCOM*, PHY_QCOM*, QCOM_IOMMU, QCOM_CLK*, etc
+    - SERIAL_DEV_BUS for HiKey bluetooth
   * All options as modules when possible
 
  -- Ben Hutchings <ben@decadent.org.uk>  Mon, 30 Oct 2017 21:56:34 +0000

debian/config/arm64/config

@@ -158,7 +158,6 @@ CONFIG_ARM_CPUIDLE=y
 ## file: drivers/crypto/Kconfig
 ##
 CONFIG_CRYPTO_DEV_MARVELL_CESA=m
-CONFIG_CRYPTO_DEV_CAVIUM_ZIP=m
 CONFIG_CRYPTO_DEV_QCE=m
 CONFIG_CRYPTO_DEV_SAFEXCEL=m
 
@@ -900,6 +899,11 @@ CONFIG_QCOM_TSENS=m
 ##
 CONFIG_TEGRA_SOCTHERM=y
 
+##
+## file: drivers/tty/serdev/Kconfig
+##
+CONFIG_SERIAL_DEV_BUS=m
+
 ##
 ## file: drivers/tty/serial/Kconfig
 ##