drm/amd/display: remove unnecessary conditional operators

Since the variables named is_end_of_payload and hpd_status are already
bool type, the ?: conditional operator is unnecessary any more.

Clean them up here.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Reviewed-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -789,8 +789,7 @@ static void dm_dmub_outbox1_low_irq(void *interrupt_params)
 					plink = adev->dm.dc->links[notify.link_index];
 					if (plink) {
 						plink->hpd_status =
-							notify.hpd_status ==
-							DP_HPD_PLUG ? true : false;
+							notify.hpd_status == DP_HPD_PLUG;
 					}
 				}
 				queue_work(adev->dm.delayed_hpd_wq, &dmub_hpd_wrk->handle_hpd_work);

drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c

@@ -626,7 +626,7 @@ bool dal_ddc_submit_aux_command(struct ddc_service *ddc,
 	do {
 		struct aux_payload current_payload;
 		bool is_end_of_payload = (retrieved + DEFAULT_AUX_MAX_DATA_SIZE) >=
-				payload->length ? true : false;
+				payload->length;
 		uint32_t payload_length = is_end_of_payload ?
 				payload->length - retrieved : DEFAULT_AUX_MAX_DATA_SIZE;