ppc / layerscape: Clean up CONFIG_SYS_CCSR_DO_NOT_RELOCATE usage

A number of PowerPC platforms define this, for SPL.  To move this to
Kconfig, it needs to be CONFIG_SPL_SYS_CCSR_DO_NOT_RELOCATE, so use
CONFIG_IS_ENABLED() to check for usage.  A number of layerscape
platforms bring this logic from PowerPC, but only need a small part of
it, for the fman driver.  Remove their unused portion at least.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 48af2a3..3cee3c3 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -206,6 +206,17 @@
 	  Create boot binary having SPL binary in PBI format concatenated with
 	  u-boot binary.
 
+config SPL_SYS_CCSR_DO_NOT_RELOCATE
+	bool "Ensures that CCSR is not relocated"
+	depends on PPC
+	help
+	  If this is defined, then CONFIG_SYS_CCSRBAR_PHYS will be forced to a
+	  value that ensures that CCSR is not relocated.
+
+config TPL_SYS_CCSR_DO_NOT_RELOCATE
+	def_bool y
+	depends on SPL_SYS_CCSR_DO_NOT_RELOCATE
+
 endmenu
 
 menu "PowerPC SPL specific options"