[POWERPC] Consolidate pseries platform header files into pseries.h

Following the example of platforms/pasemi, consolidate a couple of
tiny header files in platforms/pseries into pseries.h.

This gives us a convenient place to put things that need to be
available to the platform code, but not public. And hopefully will
help people resist the temptation of sticking externs in C files.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 042ecae..a28264c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -65,10 +65,10 @@
 #include <asm/i8259.h>
 #include <asm/udbg.h>
 #include <asm/smp.h>
+#include <asm/firmware.h>
 
 #include "plpar_wrappers.h"
-#include "ras.h"
-#include "firmware.h"
+#include "pseries.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)