[ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead

Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 2d84792..968b833 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -4,7 +4,7 @@
 #ifdef __KERNEL__
 #include <asm-generic/pci-dma-compat.h>
 
-#include <asm/hardware.h> /* for PCIBIOS_MIN_* */
+#include <asm/arch/hardware.h> /* for PCIBIOS_MIN_* */
 
 #define pcibios_scan_all_fns(a, b)	0