[coreboot-gerrit] Change in coreboot[master]: chromeec: Add google_chromeec_wait_for_display

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Change subject: chromeec: Add google_chromeec_wait_for_display
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Patch Set 7:

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/67637/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/22145/ : SUCCESS