DEV HACK: cts: increase permitted colour delta

Increase the permitted precision in EncodeVirtualDisplayTest
as proof-of-concept to allow for 5-bit precision in each colour
component.

The Broadcom Capri GLES driver currently uses RGB565 for video
on texture, which only provides 5 bits of precision; whereas this
test requires 6.

Change-Id: I66393485055ec92906124d76f7ae85d88592eb10
Refs: SW-13226

Change-Id: Ia3bf1599c85bd6be0f00dd5d86f548006b1eec18
Signed-off-by: Raj Mamadgi <rmamadgi@sta.samsung.com>
1 file changed