[U-Boot] [PATCH] boards: remove the no longer used CONFIG_EHCI_DCACHE

[Marek Vasut]

Dear Jeroen Hofstee,

> CONFIG_EHCI_DCACHE was removed by commit b8adb12
> "USB: Drop cache flush bloat in EHCI-HCD". Remove the defines from
> the boards configs as well.
> 
> Signed-off-by: Jeroen Hofstee <jeroen at myspectrum.nl>
> cc: Marek Vasut <marex at denx.de>
> cc: Stefan Roese <sr at denx.de>
> cc: Tom Rini <trini at ti.com>
> cc: Wolfgang Denk <wd at denx.de>
> cc: Thierry Reding <thierry.reding at avionic-design.de>
> cc: Tom Warren <twarren at nvidia.com>
> cc: Stephen Warren <swarren at nvidia.com>
> cc: Stefano Babic <sbabic at denx.de>

Acked-by: Marek Vasut <marex at denx.de>

Best regards,
Marek Vasut