configs: add dragonboard410c_chainloaded_defconfig

Revive support for booting db410c using the Linux kernel header, this
allows for testing the board more easily via `fastboot`.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/board/qualcomm/dragonboard410c/MAINTAINERS b/board/qualcomm/dragonboard410c/MAINTAINERS
index e78f5b2..653b91b 100644
--- a/board/qualcomm/dragonboard410c/MAINTAINERS
+++ b/board/qualcomm/dragonboard410c/MAINTAINERS
@@ -4,4 +4,5 @@
 F:	board/qualcomm/dragonboard410c/
 F:	include/configs/dragonboard410c.h
 F:	configs/dragonboard410c_defconfig
+F:	configs/dragonboard410c_chainloaded_defconfig
 F:	doc/board/qualcomm/dragonboard410c.rst
diff --git a/configs/dragonboard410c_chainloaded_defconfig b/configs/dragonboard410c_chainloaded_defconfig
new file mode 100644
index 0000000..d6860f5
--- /dev/null
+++ b/configs/dragonboard410c_chainloaded_defconfig
@@ -0,0 +1,75 @@
+CONFIG_ARM=y
+CONFIG_COUNTER_FREQUENCY=19000000
+CONFIG_ARCH_SNAPDRAGON=y
+CONFIG_TARGET_QCOM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_SYS_MALLOC_LEN=0x802000
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_OFFSET=0x0
+CONFIG_DEFAULT_DEVICE_TREE="dragonboard410c"
+CONFIG_SYS_BOARD="dragonboard410c"
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_IDENT_STRING="\nQualcomm-DragonBoard 410C"
+CONFIG_SYS_LOAD_ADDR=0x80080000
+CONFIG_REMAKE_ELF=y
+# CONFIG_ANDROID_BOOT_IMAGE is not set
+CONFIG_FIT=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_USE_PREBOOT=y
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_MISC_INIT_R=y
+CONFIG_LINUX_KERNEL_IMAGE_HEADER=y
+CONFIG_SYS_PROMPT="dragonboard410c => "
+CONFIG_SYS_MAXARGS=64
+CONFIG_SYS_CBSIZE=512
+CONFIG_SYS_PBSIZE=548
+# CONFIG_CMD_IMI is not set
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+CONFIG_BOOTP_BOOTFILESIZE=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIMER=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_PART=2
+CONFIG_CLK=y
+CONFIG_CLK_QCOM_APQ8016=y
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x91000000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
+CONFIG_MSM_GPIO=y
+CONFIG_QCOM_PMIC_GPIO=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_MSM=y
+CONFIG_PHY=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_QCOM_APQ8016=y
+CONFIG_PINCONF=y
+CONFIG_DM_PMIC=y
+CONFIG_PMIC_QCOM=y
+CONFIG_MSM_SERIAL=y
+CONFIG_SPMI_MSM=y
+CONFIG_BUTTON_QCOM_PMIC=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_MSM=y
+CONFIG_USB_ULPI_VIEWPORT=y
+CONFIG_USB_ULPI=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_ETHER_ASIX=y
+CONFIG_USB_ETHER_ASIX88179=y
+CONFIG_USB_ETHER_MCS7830=y
+CONFIG_USB_ETHER_SMSC95XX=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x18d1
+CONFIG_USB_GADGET_PRODUCT_NUM=0xd00d
+CONFIG_CI_UDC=y