1.Declare the member type to match the kscan_it8xxx2_regs, so
we needn't to transform the local structure in the function.
2.Stop using DRV_CONFIG, DRV_DATA, DRV_REG macros.
3.Delete unused register defines.
Signed-off-by: Ruibin Chang <Ruibin.Chang@ite.com.tw>
Add kscan0 to support tests/driver/kscan/kscan_api.
When running the tests code on it8xxx2_evb, it shows fatal
error: IRQ is enabled. We find that once polling_task() is
created and executed, the KSI interrupt will be enabled and
before we call irq_connect_dynamic(), so we switch both
function sequence.
Signed-off-by: Ruibin Chang <Ruibin.Chang@ite.com.tw>
