Ios: Fix qbs build.

Change-Id: I7ae7404873210d6c620020834e6bf4815c4187a7
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
(cherry picked from commit fdd4f463)

src/tools/3rdparty/iossim/iossim.qbs

@@ -12,7 +12,7 @@ QtcTool {
     files: [
         "main.mm",
         "nsprintf.m",
-        "nsstringexpandPath.m",
+        "nsstringexpandpath.m",
         "iphonesimulator.m",
         "iphonesimulator.h",
         "nsprintf.h",