powerpc: make iSeries build

Merge vmlinux.lds.S.
Also remove arch/powerpc/kernel/vmlinux.lds which is a
generated file.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 953a74b..7f891eb 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -833,6 +833,12 @@
 	depends on ADVANCED_OPTIONS && 8xx
 endmenu
 
+if PPC64
+config KERNEL_START
+	hex
+	default "0xc0000000"
+endif
+
 source "net/Kconfig"
 
 source "drivers/Kconfig"