ppc: Move lbc_clk and cpu to arch_global_data

Move these fields into arch_global_data and tidy up.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Update for bsc9132qds.c, b4860qds.c]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c
index 3a268aa..d381cf9 100644
--- a/arch/powerpc/cpu/mpc85xx/fdt.c
+++ b/arch/powerpc/cpu/mpc85xx/fdt.c
@@ -637,9 +637,9 @@
 		"bus-frequency", bd->bi_busfreq, 1);
 
 	do_fixup_by_compat_u32(blob, "fsl,pq3-localbus",
-		"bus-frequency", gd->lbc_clk, 1);
+		"bus-frequency", gd->arch.lbc_clk, 1);
 	do_fixup_by_compat_u32(blob, "fsl,elbc",
-		"bus-frequency", gd->lbc_clk, 1);
+		"bus-frequency", gd->arch.lbc_clk, 1);
 #ifdef CONFIG_QE
 	ft_qe_setup(blob);
 	ft_fixup_qe_snum(blob);