drm/amd/display: Rename constant

[WHY]
7 is the minimum number of retries TX must attempt on an AUX DEFER, not
the maximum.

Signed-off-by: Wesley Chalmers <[e-mail]>
Reviewed-by: Jun Lei <[e-mail]>
Acked-by: Anson Jacob <[e-mail]>
Tested-by: Daniel Wheeler <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/dce/dce_aux.c

···
 }
 
 #define AUX_MAX_RETRIES 7
-#define AUX_MAX_DEFER_RETRIES 7
+#define AUX_MIN_DEFER_RETRIES 7
 #define AUX_MAX_I2C_DEFER_RETRIES 7
 #define AUX_MAX_INVALID_REPLY_RETRIES 2
 #define AUX_MAX_TIMEOUT_RETRIES 3
···
 				retry_on_defer = true;
 				fallthrough;
 			case AUX_TRANSACTION_REPLY_I2C_OVER_AUX_NACK:
-				if (++aux_defer_retries >= AUX_MAX_DEFER_RETRIES) {
+				if (++aux_defer_retries >= AUX_MIN_DEFER_RETRIES) {
 					goto fail;
 				} else {
 					if ((*payload->reply == AUX_TRANSACTION_REPLY_AUX_DEFER) ||
···
 			// Check whether a DEFER had occurred before the timeout.
 			// If so, treat timeout as a DEFER.
 			if (retry_on_defer) {
-				if (++aux_defer_retries >= AUX_MAX_DEFER_RETRIES)
+				if (++aux_defer_retries >= AUX_MIN_DEFER_RETRIES)
 					goto fail;
 				else if (payload->defer_delay > 0)
 					msleep(payload->defer_delay);