[S390] lowcore cleanup

Remove the save_area_64 field from the 0xe00 - 0xf00 area in the lowcore.
Use a free slot in the save_area array instead.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index a0f5b68..732a793 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -17,11 +17,11 @@
 #
 ENTRY(store_status)
 	/* Save register one and load save area base */
-	stg	%r1,__LC_SAVE_AREA_64(%r0)
+	stg	%r1,__LC_SAVE_AREA+120(%r0)
 	lghi	%r1,SAVE_AREA_BASE
 	/* General purpose registers */
 	stmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE(%r1)
-	lg	%r2,__LC_SAVE_AREA_64(%r0)
+	lg	%r2,__LC_SAVE_AREA+120(%r0)
 	stg	%r2,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE+8(%r1)
 	/* Control registers */
 	stctg	%c0,%c15,__LC_CREGS_SAVE_AREA-SAVE_AREA_BASE(%r1)