drivers: kscan: Add generic ADC kscan driver

Signed-off-by: xychen <xychen@listenai.com>
2 job 于ch32v-kscan in 7 minute 和 55 second (queued for 2 second)
状态 作业 ID 名称 覆盖率
  Ztest
已通过 #57448
zgsz-02 generic
ztest_build_only

00:06:25

已通过 #57449
zgsz-03 with-device
ztest_device_test

00:07:55