fastboot: Move fastboot to drivers/fastboot
Separate CMD_FASTBOOT from FASTBOOT and move code and configuration to
drivers/fastboot.
Switch dependencies on FASTBOOT to USB_FUNCTION_FASTBOOT as anyone who wants
FASTBOOT before this series wants USB_FUNCTION_FASTBOOT. Split
USB_FUNCTION_FASTBOOT from FASTBOOT so they retain their existing
behaviour.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/fastboot/Makefile b/drivers/fastboot/Makefile
new file mode 100644
index 0000000..651fbf0
--- /dev/null
+++ b/drivers/fastboot/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV
+obj-y += fb_mmc.o
+endif
+ifdef CONFIG_FASTBOOT_FLASH_NAND_DEV
+obj-y += fb_nand.o
+endif