drm/amdgpu/dc: fix typos in comments

Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: JuliaLawall

drivers/gpu/drm/amd/display/dc/bios/command_table.c

@@ -456,7 +456,7 @@ static enum bp_result transmitter_control_v2(
 		if ((CONNECTOR_ID_DUAL_LINK_DVII == connector_id) ||
 				(CONNECTOR_ID_DUAL_LINK_DVID == connector_id))
 			/* on INIT this bit should be set according to the
-			 * phisycal connector
+			 * physical connector
 			 * Bit0: dual link connector flag
 			 * =0 connector is single link connector
 			 * =1 connector is dual link connector
@@ -468,7 +468,7 @@ static enum bp_result transmitter_control_v2(
 				cpu_to_le16((uint8_t)cntl->connector_obj_id.id);
 		break;
 	case TRANSMITTER_CONTROL_SET_VOLTAGE_AND_PREEMPASIS:
-		/* votage swing and pre-emphsis */
+		/* voltage swing and pre-emphsis */
 		params.asMode.ucLaneSel = (uint8_t)cntl->lane_select;
 		params.asMode.ucLaneSet = (uint8_t)cntl->lane_settings;
 		break;
@@ -2120,7 +2120,7 @@ static enum bp_result program_clock_v5(
 	memset(&params, 0, sizeof(params));
 	if (!bp->cmd_helper->clock_source_id_to_atom(
 			bp_params->pll_id, &atom_pll_id)) {
-		BREAK_TO_DEBUGGER(); /* Invalid Inpute!! */
+		BREAK_TO_DEBUGGER(); /* Invalid Input!! */
 		return BP_RESULT_BADINPUT;
 	}