rename old symbol PANORAMIX to XINERAMA

PANORAMIX was the original working title of the extension, before it became
official standard. Just nobody cared about fixing the symbols to the official
naming.

For backwards compatibility with drivers, the old PANORAMIX symbol will
still be set.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1258>

record/record.c

@@ -49,12 +49,12 @@ and Jim Haggerty of Metheus.
 #include <stdio.h>
 #include <assert.h>
 
-#ifdef PANORAMIX
+#ifdef XINERAMA
 #include "globals.h"
 #include "panoramiX.h"
 #include "panoramiXsrv.h"
 #include "cursor.h"
-#endif
+#endif /* XINERAMA */
 
 #include "protocol-versions.h"
 
@@ -713,7 +713,7 @@ RecordSendProtocolEvents(RecordClientsAndProtocolPtr pRCAP,
             xEvent swappedEvent;
             xEvent *pEvToRecord = pev;
 
-#ifdef PANORAMIX
+#ifdef XINERAMA
             xEvent shiftedEvent;
 
             if (!noPanoramiXExtension &&
@@ -730,7 +730,7 @@ RecordSendProtocolEvents(RecordClientsAndProtocolPtr pRCAP,
                     screenInfo.screens[scr]->y - screenInfo.screens[0]->y;
                 pEvToRecord = &shiftedEvent;
             }
-#endif                          /* PANORAMIX */
+#endif /* XINERAMA */
 
             if (pContext->pRecordingClient->swapped) {
                 (*EventSwapVector[pEvToRecord->u.u.type & 0177])