qcacmn: Change maximum duration of a Korea RADAR Filter

When the radio is in HT20 mode, the duration of Korea Type 3 RADAR is
reported by the HW as 3us although the duration is only 1us. The minimum
and maximum duration for the corresponding filter(FilterID 42) is 0us
and 2us respectively. So host will neglect the pulses with a duration of
3us. This will result in Host failing to detect the Korea Type 3 RADAR
pulses in HT20 mode.

Increase the maximum duration of the filter(FilterID 42) to 3us.

Change-Id: I45f337ec31e017c4a0c19f1afea3fc7a08af9888
CRs-Fixed: 2503942

umac/dfs/core/src/filtering/dfs_partial_offload_radar.c

@@ -247,7 +247,7 @@ static struct dfs_pulse dfs_korea_radars[] = {
 	{10,  1, 1800, 1800, 0, 4,  4,  0,  1, 18,  0, 3,  1, 5, 0, 41},
 
 	/* Korea Type 3 */
-	{70,  1,  330, 330,  0, 4, 20,  0,  2, 18,  0, 3,  1, 5, 0, 42},
+	{70,  1,  330, 330,  0, 4, 20,  0,  3, 18,  0, 3,  1, 5, 0, 42},
 
 	/* Korea Type 4 */
 	{3,   1, 3003, 3003, 1, 7,  2,  0,  1, 18,  0, 0, 1,  1000, 0, 43},