staging: vchiq: Reformat Kconfig help texts

The lines in the VCHIQ Kconfig help texts are too long, which makes
it hard to read the menuconfig. So reformat them to restore the
readability.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20240414192257.6011-1-wahrenst@gmx.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>