google_charger: Only set charger PSY FV if FV changed

This prevents -1 from being sent to the charger PSY if the device
connects to power with its charging path suspended (therefore not
drawing power).

Bug: 328534364
Signed-off-by: Andrei Ciubotariu <[email protected]>
(cherry picked from https://partner-android-review.googlesource.com/q/commit:4b8a32c534a8fbe108c4a73e77305c8ff182ec57)
Merged-In: I38771b1d55c70af4dd9016d1b04f052f83434650
Change-Id: I38771b1d55c70af4dd9016d1b04f052f83434650
1 file changed