MFD: mcp-sa11x0: use _noirq resume methods

The genirq code requires early access to interrupt controllers.  In
order to allow this, we need to resume the MCP via the _noirq methods
instead of the standard methods.

Acked-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>