[POWERPC] Move prototype for find_udbg_vterm() into a header file

Move the prototype for find_udbg_vterm() into pseries.h, removing
it from setup.c.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/pseries/lpar.c

@@ -40,6 +40,7 @@
 #include <asm/smp.h>
 
 #include "plpar_wrappers.h"
+#include "pseries.h"
 
 #ifdef DEBUG_LOW
 #define DBG_LOW(fmt...) do { udbg_printf(fmt); } while(0)

arch/powerpc/platforms/pseries/pseries.h

@@ -38,4 +38,6 @@ extern void pSeries_final_fixup(void);
 /* Poweron flag used for enabling auto ups restart */
 extern unsigned long rtas_poweron_auto;
 
+extern void find_udbg_vterm(void);
+
 #endif /* _PSERIES_PSERIES_H */

arch/powerpc/platforms/pseries/setup.c

@@ -76,9 +76,6 @@
 #define DBG(fmt...)
 #endif
 
-/* move those away to a .h */
-extern void find_udbg_vterm(void);
-
 int fwnmi_active;  /* TRUE if an FWNMI handler is present */
 
 static void pseries_shared_idle_sleep(void);