mpc83xx: Introduce ARCH_MPC836*

Replace CONFIG_MPC836* with proper CONFIG_ARCH_MPC836* Kconfig options.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/arch/powerpc/cpu/mpc83xx/Kconfig b/arch/powerpc/cpu/mpc83xx/Kconfig
index 6cca45e..5f9d036 100644
--- a/arch/powerpc/cpu/mpc83xx/Kconfig
+++ b/arch/powerpc/cpu/mpc83xx/Kconfig
@@ -80,6 +80,7 @@
 
 config TARGET_KM8360
 	bool "Support km8360"
+	select ARCH_MPC8360
 	imply CMD_CRAMFS
 	imply CMD_DIAG
 	imply FS_CRAMFS
@@ -147,6 +148,9 @@
 	bool
 	select ARCH_MPC834X
 
+config ARCH_MPC8360
+	bool
+
 source "board/esd/vme8349/Kconfig"
 source "board/freescale/mpc8308rdb/Kconfig"
 source "board/freescale/mpc8313erdb/Kconfig"
diff --git a/arch/powerpc/cpu/mpc83xx/speed.c b/arch/powerpc/cpu/mpc83xx/speed.c
index 7cb6f37..ed77675 100644
--- a/arch/powerpc/cpu/mpc83xx/speed.c
+++ b/arch/powerpc/cpu/mpc83xx/speed.c
@@ -113,7 +113,7 @@
 	u32 lbiu_clk;
 	u32 lclk_clk;
 	u32 mem_clk;
-#if defined(CONFIG_MPC8360)
+#if defined(CONFIG_ARCH_MPC8360)
 	u32 mem_sec_clk;
 #endif
 #if defined(CONFIG_QE)
@@ -313,7 +313,7 @@
 
 #if defined(CONFIG_ARCH_MPC834X)
 	i2c1_clk = tsec2_clk;
-#elif defined(CONFIG_MPC8360)
+#elif defined(CONFIG_ARCH_MPC8360)
 	i2c1_clk = csb_clk;
 #elif defined(CONFIG_ARCH_MPC832X)
 	i2c1_clk = enc_clk;
@@ -407,7 +407,7 @@
 		  (1 + ((im->clk.spmr & SPMR_DDRCM) >> SPMR_DDRCM_SHIFT));
 	corepll = (im->clk.spmr & SPMR_COREPLL) >> SPMR_COREPLL_SHIFT;
 
-#if defined(CONFIG_MPC8360)
+#if defined(CONFIG_ARCH_MPC8360)
 	mem_sec_clk = csb_clk * (1 +
 		       ((im->clk.spmr & SPMR_LBIUCM) >> SPMR_LBIUCM_SHIFT));
 #endif
@@ -476,7 +476,7 @@
 	gd->arch.lbiu_clk = lbiu_clk;
 	gd->arch.lclk_clk = lclk_clk;
 	gd->mem_clk = mem_clk;
-#if defined(CONFIG_MPC8360)
+#if defined(CONFIG_ARCH_MPC8360)
 	gd->arch.mem_sec_clk = mem_sec_clk;
 #endif
 #if defined(CONFIG_QE)
@@ -536,7 +536,7 @@
 	printf("  Local Bus:           %-4s MHz\n",
 	       strmhz(buf, gd->arch.lclk_clk));
 	printf("  DDR:                 %-4s MHz\n", strmhz(buf, gd->mem_clk));
-#if defined(CONFIG_MPC8360)
+#if defined(CONFIG_ARCH_MPC8360)
 	printf("  DDR Secondary:       %-4s MHz\n",
 	       strmhz(buf, gd->arch.mem_sec_clk));
 #endif