drm/i915/dp: fix spelling mistakes: "seqeuncer" and "seqeuencer"

Trivial fix to spelling mistakes in WARN warning message text and
in comments:

"seqeuncer", "seqeuencer" -> "sequencer"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180509101606.17483-1-colin.king@canonical.com

drivers/gpu/drm/i915/intel_dp.c

@@ -513,7 +513,7 @@ vlv_power_sequencer_kick(struct intel_dp *intel_dp)
 	uint32_t DP;
 
 	if (WARN(I915_READ(intel_dp->output_reg) & DP_PORT_EN,
-		 "skipping pipe %c power seqeuncer kick due to port %c being active\n",
+		 "skipping pipe %c power sequencer kick due to port %c being active\n",
 		 pipe_name(pipe), port_name(intel_dig_port->base.port)))
 		return;
 
@@ -554,7 +554,7 @@ vlv_power_sequencer_kick(struct intel_dp *intel_dp)
 	/*
 	 * Similar magic as in intel_dp_enable_port().
 	 * We _must_ do this port enable + disable trick
-	 * to make this power seqeuencer lock onto the port.
+	 * to make this power sequencer lock onto the port.
 	 * Otherwise even VDD force bit won't work.
 	 */
 	I915_WRITE(intel_dp->output_reg, DP);
@@ -3066,11 +3066,11 @@ static void vlv_detach_power_sequencer(struct intel_dp *intel_dp)
 	edp_panel_vdd_off_sync(intel_dp);
 
 	/*
-	 * VLV seems to get confused when multiple power seqeuencers
+	 * VLV seems to get confused when multiple power sequencers
 	 * have the same port selected (even if only one has power/vdd
 	 * enabled). The failure manifests as vlv_wait_port_ready() failing
 	 * CHV on the other hand doesn't seem to mind having the same port
-	 * selected in multiple power seqeuencers, but let's clear the
+	 * selected in multiple power sequencers, but let's clear the
 	 * port select always when logically disconnecting a power sequencer
 	 * from a port.
 	 */
@@ -5698,7 +5698,7 @@ intel_dp_init_panel_power_sequencer_registers(struct intel_dp *intel_dp,
 
 	/*
 	 * On some VLV machines the BIOS can leave the VDD
-	 * enabled even on power seqeuencers which aren't
+	 * enabled even on power sequencers which aren't
 	 * hooked up to any port. This would mess up the
 	 * power domain tracking the first time we pick
 	 * one of these power sequencers for use since
@@ -5706,7 +5706,7 @@ intel_dp_init_panel_power_sequencer_registers(struct intel_dp *intel_dp,
 	 * already on and therefore wouldn't grab the power
 	 * domain reference. Disable VDD first to avoid this.
 	 * This also avoids spuriously turning the VDD on as
-	 * soon as the new power seqeuencer gets initialized.
+	 * soon as the new power sequencer gets initialized.
 	 */
 	if (force_disable_vdd) {
 		u32 pp = ironlake_get_pp_control(intel_dp);