[][Change spi source clk to 208M]

[Description]
Change spi source clk to 208M

[Release-log]
N/A

Change-Id: I886d7ed2409fedc53e5b2ec5d73228e9b210e79f
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5255875
1 file changed