Fix log statement on failure to setVisibleRegion

Follow on to I2b7b3b4b5630011323a802908c5a80917bdb86ef, which makes it
so we might pass the overrideInfo's visibleRegion instead of the one on
outputDependentState. If the HWC2::Layer call fails, dump the actual
region passed to it, whether it's the original or the override.

Bug: 183456093
Test: make
Change-Id: I5dbb106f7c855d328b5c72a1e4ccacda20bda2c7