fjes: Add debugfs entry for EP status information in fjes driver

This patch adds debugfs entry to show EP status information.
You can get each EP's status information like the following:

# cat /s

fjes: Add debugfs entry for EP status information in fjes driver

This patch adds debugfs entry to show EP status information.
You can get each EP's status information like the following:

# cat /sys/kernel/debug/fjes/fjes.0/status

EPID STATUS SAME_ZONE CONNECTED
ep0 shared Y Y
ep1 - - -
ep2 unshared N N
ep3 unshared N N
ep4 unshared N N
ep5 unshared N N
ep6 unshared N N
ep7 unshared N N

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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