configs: fsl: move via specific defines to Kconfig

Moves below via specific defines to Kconfig:

	CONFIG_FSL_VIA

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/Kconfig b/arch/powerpc/cpu/mpc85xx/Kconfig
index 6f90518..1a4e0b9 100644
--- a/arch/powerpc/cpu/mpc85xx/Kconfig
+++ b/arch/powerpc/cpu/mpc85xx/Kconfig
@@ -51,14 +51,17 @@
 config TARGET_MPC8541CDS
 	bool "Support MPC8541CDS"
 	select ARCH_MPC8541
+	select FSL_VIA
 
 config TARGET_MPC8548CDS
 	bool "Support MPC8548CDS"
 	select ARCH_MPC8548
+	select FSL_VIA
 
 config TARGET_MPC8555CDS
 	bool "Support MPC8555CDS"
 	select ARCH_MPC8555
+	select FSL_VIA
 
 config TARGET_MPC8568MDS
 	bool "Support MPC8568MDS"
@@ -1409,6 +1412,9 @@
 		Defines divider of platform clock(clock input to
 		eLBC controller).
 
+config FSL_VIA
+	bool
+
 source "board/freescale/corenet_ds/Kconfig"
 source "board/freescale/mpc8541cds/Kconfig"
 source "board/freescale/mpc8548cds/Kconfig"
diff --git a/include/configs/MPC8541CDS.h b/include/configs/MPC8541CDS.h
index b1c8917..ea4da6a 100644
--- a/include/configs/MPC8541CDS.h
+++ b/include/configs/MPC8541CDS.h
@@ -18,8 +18,6 @@
 #define CONFIG_PCI_INDIRECT_BRIDGE
 #define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
 
-#define CONFIG_FSL_VIA
-
 #ifndef __ASSEMBLY__
 extern unsigned long get_clock_freq(void);
 #endif
diff --git a/include/configs/MPC8548CDS.h b/include/configs/MPC8548CDS.h
index 0605f70..9f83931 100644
--- a/include/configs/MPC8548CDS.h
+++ b/include/configs/MPC8548CDS.h
@@ -23,8 +23,6 @@
 
 #define CONFIG_INTERRUPTS		/* enable pci, srio, ddr interrupts */
 
-#define CONFIG_FSL_VIA
-
 #ifndef __ASSEMBLY__
 #include <linux/stringify.h>
 extern unsigned long get_clock_freq(void);
diff --git a/include/configs/MPC8555CDS.h b/include/configs/MPC8555CDS.h
index 88999ef..79e309c 100644
--- a/include/configs/MPC8555CDS.h
+++ b/include/configs/MPC8555CDS.h
@@ -18,8 +18,6 @@
 #define CONFIG_PCI_INDIRECT_BRIDGE
 #define CONFIG_SYS_PCI_64BIT	1	/* enable 64-bit PCI resources */
 
-#define CONFIG_FSL_VIA
-
 #ifndef __ASSEMBLY__
 extern unsigned long get_clock_freq(void);
 #endif
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 3ba2781..e793cd1 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -551,7 +551,6 @@
 CONFIG_FSL_SGMII_RISER
 CONFIG_FSL_TBCLK_EXTRA_DIV
 CONFIG_FSL_TRUST_ARCH_v1
-CONFIG_FSL_VIA
 CONFIG_FSMC_NAND_BASE
 CONFIG_FSMTDBLK
 CONFIG_FSNOTIFY