drivers:counter_csk6: Change the priority to POST_KERNEL

* We should not call any kernel functions in PRE_KERNEL_1 stage. So change the priority to POST_KERNEL

Signed-off-by: 徐宪辉 <xhxu@listenai.com>
7 job 于test/csk6012_nano_ci in 10 minute 和 57 second
状态 作业 ID 名称 覆盖率
  Ztest
已通过 #41637
zgsz-02 generic
ztest_build_only

00:04:13

已通过 #41638
with-device zgsz-03
ztest_device_test

00:06:43

已失败 #41631
zgsz-02 generic
ztest_build_only

00:04:12

已通过 #41633
zgsz-02 generic
ztest_build_only

00:04:09

已通过 #41635
zgsz-02 generic
ztest_build_only

00:04:11

已通过 #41636
zgsz-02 generic
ztest_build_only

00:04:07

已通过 #41632
zgsz-03 with-device
ztest_device_test

00:06:43