Handle R16G16B16A16_FLOAT in AHardwareBuffer_bytesPerPixel

Bug: b/192315789
Test: cts -m CtsNativeHardwareTestCases -t
      SingleLayer_ColorTest_CpuWriteColorGpuRead_R16G16B16A16_FLOAT
Change-Id: Iaf3c07fa2856c8e7ddaa5f3d57eaf686fc136fa1
1 file changed