updates txtinput.js file

Author: Harini Malothu

vnext/src-win/Libraries/Components/TextInput/TextInput.windows.js

@@ -609,6 +609,15 @@ type TextInputWindowsProps = $ReadOnly<{|
 // Windows]
 
 type TextInputBaseProps = $ReadOnly<{
+   
+  /**
+   * String to be read by screenreaders to indicate an error state. The acceptable parameters
+   * of accessibilityErrorMessage is a string. Setting accessibilityInvalid to true activates
+   * the error message. Setting accessibilityInvalid to false removes the error message.
+   */
+  accessibilityErrorMessage?: ?Stringish,
+  accessibilityInvalid?: ?boolean,
+
   /**
    * Can tell `TextInput` to automatically capitalize certain characters.
    *