[Why]
To get the pixel statistics on every frame, change ABM
sample rate from 2 to 1.

[How]
Change LS, HS and BL sample rate to 1.
Signed-off-by: NPo-Ting Chen <robin.chen@amd.com>
Reviewed-by: NAnthony Koo <Anthony.Koo@amd.com>
Acked-by: NQingqing Zhuo <Qingqing.Zhuo@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>