Change in coreboot[master]: rockchip/rk3399: mipi: Fix LOOP_DIV_HIGH_SEL to be 4 bits wide

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Change subject: rockchip/rk3399: mipi: Fix LOOP_DIV_HIGH_SEL to be 4 bits wide
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Patch Set 4:

Build Successful

https://qa.coreboot.org/job/coreboot-checkpatch/18556/ : SUCCESS

https://qa.coreboot.org/job/coreboot-gerrit/63657/ : SUCCESS