FreeBSD/src cada7ea (r348228)sys/dev/amdgpio amdgpio.c

amdgpio: fix reading status of input pins

AMD FCH GPIO controller uses different bits for setting the output level
and for reporting the input level.

MFC after:      2 weeks
DeltaFile
+11-4sys/dev/amdgpio/amdgpio.c
+11-41 files

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