drm/amd/dc: hw_sequencer: fix semicolon.cocci warnings

Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci
Signed-off-by: NJulia Lawall <julia.lawall@lip6.fr>
Signed-off-by: NFengguang Wu <fengguang.wu@intel.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

@@ -2070,7 +2070,7 @@ static void init_hw(struct core_dc *dc)
 			true);
 	}
 
-	dce_clock_gating_power_up(dc->hwseq, false);;
+	dce_clock_gating_power_up(dc->hwseq, false);
 	/***************************************/
 
 	for (i = 0; i < dc->link_count; i++) {