Convert CONFIG_SYS_PCI_64BIT to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_PCI_64BIT

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 85c964b..26c96ed 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1909,6 +1909,7 @@
 	select OF_LIVE
 	select BOARD_LATE_INIT
 	select SYS_CACHE_SHIFT_7
+	select SYS_PCI_64BIT if PCI
 	imply OF_HAS_PRIOR_STAGE
 
 config ARCH_OCTEONTX2
@@ -1921,6 +1922,7 @@
 	select OF_LIVE
 	select BOARD_LATE_INIT
 	select SYS_CACHE_SHIFT_7
+	select SYS_PCI_64BIT if PCI
 	imply OF_HAS_PRIOR_STAGE
 
 config TARGET_THUNDERX_88XX
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index a499a9f..0b0e2ea 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -262,6 +262,7 @@
 	select SYS_FSL_HAS_DDR4
 	select SYS_FSL_SEC_COMPAT_5
 	select SYS_FSL_SEC_LE
+	select SYS_PCI_64BIT if PCI
 	select ARCH_EARLY_INIT_R
 	select BOARD_EARLY_INIT_F
 	select SYS_I2C_MXC
@@ -301,6 +302,7 @@
 	select SYS_FSL_HAS_DDR4
 	select SYS_FSL_SEC_COMPAT_5
 	select SYS_FSL_SEC_LE
+	select SYS_PCI_64BIT if PCI
 	select ARCH_EARLY_INIT_R
 	select BOARD_EARLY_INIT_F
 	select SYS_I2C_MXC
diff --git a/arch/arm/mach-octeontx/Kconfig b/arch/arm/mach-octeontx/Kconfig
index 28ecf98..542f480 100644
--- a/arch/arm/mach-octeontx/Kconfig
+++ b/arch/arm/mach-octeontx/Kconfig
@@ -16,8 +16,4 @@
 	string
 	default "octeontx"
 
-config SYS_PCI_64BIT
-	bool
-	default y
-
 endif
diff --git a/arch/arm/mach-octeontx2/Kconfig b/arch/arm/mach-octeontx2/Kconfig
index 8e5cb0f..f6158df 100644
--- a/arch/arm/mach-octeontx2/Kconfig
+++ b/arch/arm/mach-octeontx2/Kconfig
@@ -16,8 +16,4 @@
 	string
 	default "octeontx2"
 
-config SYS_PCI_64BIT
-	bool
-	default y
-
 endif