disp: rsc: update mode-1 threshold config to 1 hz

Update mode-1 threshold configuration to 1 hz to avoid
selecting mode-2 if panel vsync is irregular.

Change-Id: I9d48d088ac1e84f9d0e422d006458527e1944ed8
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
Signed-off-by: Mahadevan <quic_mahap@quicinc.com>