staging: wilc1000: rename u64P2p_MgmtTimeout of struct host_if_drv

This patch renames u64P2p_MgmtTimeout of struct host_if_drv to p2p_timeout
to avoid CamelCase naming convention.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>