Add intrrupt gpio to private qca structure

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Store gpio in private qca structure

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Add intr gpio value to DebugFS

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Add gpio number to error messages

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fix interrupt counter initialization

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>