ARM: rmobile: Drop CONFIG_USB_MAX_CONTROLLER_COUNT on Gen3 boards

The USB support has been switched to DM, so this macro is no
longer meaningful, drop it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2 files changed