[][add 7981 pcie pipe clk]

[Description]
Add 7981 pcie pipe clk

[Release-log]
N/A

Change-Id: Ie2aad6f45cba3a6f70322cd1d4e0a277c85532e7
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5345526
2 files changed