Fix support for Input color spaces

Not really a common use-case and shouldnt be in images anyway, but
we have the code to support it, except it had a typo in it.

Pick-to: 6.6 6.5
Change-Id: I8585eaf7be82f13e61c94430743d765359fa48fe
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit b697de79b041cd47e86b578a3a119fb3e7b62f71)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

src/gui/painting/qicc.cpp

@@ -63,7 +63,7 @@ enum class ColorSpaceType : quint32 {
 };
 
 enum class ProfileClass : quint32 {
-    Input       = IccTag('s', 'c', 'r', 'n'),
+    Input       = IccTag('s', 'c', 'n', 'r'),
     Display     = IccTag('m', 'n', 't', 'r'),
     // Not supported:
     Output      = IccTag('p', 'r', 't', 'r'),