[opensuse-arm] Fix ARM kernel-default and kernel-u8500

Hi, kernel-default and kernel-u8500 fail to build because eGalax touchscreen is enabled and use the function irq_to_gpio which is not available for default and u8500 kernels. Attached patches solve the problem by disabling the eGalax support for both kernels. Can anyone modify the default and u8500 config files accordingly, please? Guillaume