Change in coreboot[master]: autoport/bd82x6x.go: Improve gpio.c generation

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Change subject: autoport/bd82x6x.go: Improve gpio.c generation
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Patch Set 3: Verified+1

Build Successful

https://qa.coreboot.org/job/coreboot-gerrit/53003/ : SUCCESS

https://qa.coreboot.org/job/coreboot-checkpatch/8847/ : SUCCESS