Convert CONFIG_FSL_LBC to Kconfig

This converts the following to Kconfig:
   CONFIG_FSL_LBC

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index cf93a7b..0fc4ced 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -34,6 +34,10 @@
 
 endchoice
 
+config FSL_LBC
+	def_bool y
+	depends on (MPC85xx || MPC83xx) && !FSL_IFC
+
 config HIGH_BATS
 	bool "Enable high BAT registers"
 	help
diff --git a/arch/powerpc/include/asm/config.h b/arch/powerpc/include/asm/config.h
index b0ad7d7..983c6f7 100644
--- a/arch/powerpc/include/asm/config.h
+++ b/arch/powerpc/include/asm/config.h
@@ -32,14 +32,6 @@
 #define BPTR_VIRT_ADDR	0xfffff000
 #endif
 
-/* Since so many PPC SOCs have a semi-common LBC, define this here */
-#if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx) || \
-	defined(CONFIG_MPC83xx)
-#if !defined(CONFIG_FSL_IFC)
-#define CONFIG_FSL_LBC
-#endif
-#endif
-
 /* The TSEC driver uses the PHYLIB infrastructure */
 #if defined(CONFIG_TSEC_ENET) && defined(CONFIG_PHYLIB)
 #include <config_phylib_all_drivers.h>