bayleybay_fsp: Add comments for the MMC/SD devices in devicetree

This just adds some additional comments for the EMMC / SD / SDIO PCI
devices in devicetree.

The documentation states that the EMMC 4.1 device shouldn't be used,
but it's available to enable in the FSP.  Because it can be enabled,
I've included it in the devicetree even though its use is discouraged.

Change-Id: I64633fe1908368f69a8d4031aa900b0bceb2189e
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/6089
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
fsp_baytrail: Minor Kconfig updates

- remove the Kconfig text when setting the default for the FSP location.
The text was showing up twice in the config menu.

- Remove an extra 'the' in the help text.

Change-Id: I3777833bf32e19bbe5a8493578a9346d6ab062a4
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/6090
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
baytrail_fsp: Fix the mmconf Kconfig

The override value in the mainboard that was removed was correct.

Change-Id: Ie820df0d6b7a713488173240f0c0ca4a9e108f71
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/6095
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)