Add the missing enable and disable function. Remove dummy mask and unmask function and use the one provided by irq_dummy_chip. Allow interrupt status register being defined from dts. Add ddr_wb_flush for ar934x/qca953x. Rename controller name to qca,ar9340-intc because this design was first introduced in AR934x. Signed-off-by: Chuanhong Guo <gch981213@gmail.com> Signed-off-by: Johann Neuhauser <johann@it-neuhauser.de>