Pixelstats: change data type of reset count path Change the type from string to vector because P21 uses more error path. Bug: 199459367 Test: build pass Change-Id: I20c477b566da9114b53dc3274c896d4c617c5d3b Merged-In: I20c477b566da9114b53dc3274c896d4c617c5d3b