Change depthcharge to not require a board-specific config file for
libpayload. If the Kconfig option is selected, use the settings
in libpayload/configs/defconfig instead.
Change-Id: I4fd1a5915472f28e757c62f3f2415716f1fdfc71
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/18271
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>