genirq: Provide locked setter for chip, handler, name

Some irq_set_type() callbacks need to change the chip and the handler
when the trigger mode changes. We have already a (misnomed) setter
function for the handler which can be called from irq_set_type().

Provide one which allows to set chip and name as well. Put the
misnomed function under the COMPAT switch and provide a replacement.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>