[ARM] pxa: separate out power manager and clock registers

The power manager and core clock registers aren't present in PXA3
CPUs.  Move them out of pxa-regs.h into pxa2xx-regs.h, and include
pxa2xx-regs.h where necessary.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/common/sharpsl_pm.c b/arch/arm/common/sharpsl_pm.c
index 5736c98..8822b68 100644
--- a/arch/arm/common/sharpsl_pm.c
+++ b/arch/arm/common/sharpsl_pm.c
@@ -31,6 +31,7 @@
 #include <asm/irq.h>
 #include <asm/arch/pm.h>
 #include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa2xx-regs.h>
 #include <asm/arch/sharpsl.h>
 #include <asm/hardware/sharpsl_pm.h>