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/usb/common/fsl-errata.c b/drivers/usb/common/fsl-errata.c
index 338ac08..31d80bb 100644
--- a/drivers/usb/common/fsl-errata.c
+++ b/drivers/usb/common/fsl-errata.c
@@ -9,6 +9,9 @@
 #include <common.h>
 #include <fsl_errata.h>
 #include<fsl_usb.h>
+#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3)
+#include <asm/arch/clock.h>
+#endif
 
 /* USB Erratum Checking code */
 #if defined(CONFIG_PPC) || defined(CONFIG_ARM)