Comment # 4 on bug 1192807 from Takashi Iwai

A known bug of powercap driver, I also hit and debugged yesterday :)

An upstream fix is found in linux-next
4d1cd1443db3d5605ebcde8672869b1944ade92d
    powercap: DTPM: Fix suspend failure and kernel warning

The patch was submitted at
https://lore.kernel.org/r/20211108062345.273855-1-daniel.lezcano@linaro.org