Fix stripped-min-length check

$(value).text() is wrong in here. Actually this will evaluate to $("someinputtext").text() where $("someinputtext") is an empty object and therefor the check will always return false as the upcoming method .text() returns an empty string.
$(element) is the input element.

lib/web/mage/validation.js

@@ -326,7 +326,7 @@
         ],
         "stripped-min-length": [
             function (value, element, param) {
-                return $(value).text().length >= param;
+                return $(element).val().length >= param;
             },
             'Please enter at least {0} characters'
         ],