Doc: change SDK name

doc/config/macros.qdocconf

@@ -20,7 +20,7 @@ macro.QD                = "\\e{Qt Designer}"
 macro.QL                = "\\e{Qt Linguist}"
 macro.QMLD              = "\\e{Qt Quick Designer}"
 macro.QQV               = "\\e{Qt QML Viewer}"
-macro.QSDK              = "\\e{Nokia Qt SDK}"
+macro.QSDK              = "\\e{Qt SDK}"
 macro.qtcversion        = $QTC_VERSION
 macro.param             = "\\e"
 macro.raisedaster.HTML  = "<sup>*</sup>"