drm/amd/display: Correct enum typo

This commit just replaces dc_interrupt_po*r*larity with its correct
name, which is dc_interrupt_polarity.

Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Rodrigo Siqueira

drivers/gpu/drm/amd/display/dc/irq_types.h

@@ -178,7 +178,7 @@ enum dc_interrupt_context {
 	INTERRUPT_CONTEXT_NUMBER
 };
 
-enum dc_interrupt_porlarity {
+enum dc_interrupt_polarity {
 	INTERRUPT_POLARITY_DEFAULT = 0,
 	INTERRUPT_POLARITY_LOW = INTERRUPT_POLARITY_DEFAULT,
 	INTERRUPT_POLARITY_HIGH,
@@ -199,12 +199,12 @@ struct dc_interrupt_params {
 	/* The polarity *change* which will trigger an interrupt.
 	 * If 'requested_polarity == INTERRUPT_POLARITY_BOTH', then
 	 * 'current_polarity' must be initialised. */
-	enum dc_interrupt_porlarity requested_polarity;
+	enum dc_interrupt_polarity requested_polarity;
 	/* If 'requested_polarity == INTERRUPT_POLARITY_BOTH',
 	 * 'current_polarity' should contain the current state, which means
 	 * the interrupt will be triggered when state changes from what is,
 	 * in 'current_polarity'. */
-	enum dc_interrupt_porlarity current_polarity;
+	enum dc_interrupt_polarity current_polarity;
 	enum dc_irq_source irq_source;
 	enum dc_interrupt_context int_context;
 };