soc/intel/broadwell/Kconfig: Clean up redefined config options

All broadwell board set HAVE_IFD_BIN to default n, overloading the option in
soc, therefore just use the defaults in sb/intel/common/firmware.

Change-Id: I250dbbc9d61ecedc1a1eb48751ad966732604349
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/28011
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
5 files changed