[corenfc] Update for Xcode 11 beta 4 (#6609)

This fix a typo in a selector that we reported on the first beta

References
* https://github.com/xamarin/maccore/issues/1785
* https://feedbackassistant.apple.com/feedback/6192467

src/corenfc.cs

@@ -318,7 +318,7 @@ namespace CoreNFC {
 
 		[iOS (13,0)]
 		[Static]
-		[Export ("wellKnowTypeTextPayloadWithString:locale:")]
+		[Export ("wellKnownTypeTextPayloadWithString:locale:")]
 		[return: NullAllowed]
 		NFCNdefPayload CreateWellKnownTypePayload (string text, NSLocale locale);
 

tests/xtro-sharpie/iOS-CoreNFC.ignore

@@ -1,6 +1,9 @@
 ## generator issue -> https://github.com/xamarin/xamarin-macios/issues/6366
 !missing-protocol-member! NFCNDEFTag::isAvailable not found
 
+## deprecated/replaced selector (typo) - will be removed in a future beta
+!missing-selector! +NFCNDEFPayload::wellKnowTypeTextPayloadWithString:locale: not bound
+
 ## breaking change -> XAMCORE_4_0
 !incorrect-protocol-member! NFCReaderSessionDelegate::readerSession:didDetectTags: is OPTIONAL and should NOT be abstract
 !incorrect-protocol-member! NFCISO15693Tag::customCommandWithRequestFlag:customCommandCode:customRequestParameters:completionHandler: is REQUIRED and should be abstract

tests/xtro-sharpie/iOS-CoreNFC.todo

@@ -1,2 +0,0 @@
-!deprecated-attribute-missing! NFCNDEFPayload::wellKnowTypeTextPayloadWithString:locale: missing a [Deprecated] attribute
-!missing-selector! +NFCNDEFPayload::wellKnownTypeTextPayloadWithString:locale: not bound