common: freescale: Move arch-specific declarations

The declarations should not be in common.h. Move them to the arch-specific
headers.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Fixup thinko defined(FSL_LSCH3) -> defined(CONFIG_FSL_LSCH3)]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/pci/pcie_layerscape.c b/drivers/pci/pcie_layerscape.c
index 7565e2f..78cde21 100644
--- a/drivers/pci/pcie_layerscape.c
+++ b/drivers/pci/pcie_layerscape.c
@@ -13,6 +13,10 @@
 #include <errno.h>
 #include <malloc.h>
 #include <dm.h>
+#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \
+	defined(CONFIG_ARM)
+#include <asm/arch/clock.h>
+#endif
 #include "pcie_layerscape.h"
 
 DECLARE_GLOBAL_DATA_PTR;