[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/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c
index 0885cc3..ec282aa 100644
--- a/drivers/spi/spi_s3c24xx.c
+++ b/drivers/spi/spi_s3c24xx.c
@@ -25,7 +25,7 @@
 
 #include <asm/io.h>
 #include <asm/dma.h>
-#include <asm/hardware.h>
+#include <asm/arch/hardware.h>
 
 #include <asm/arch/regs-gpio.h>
 #include <asm/plat-s3c24xx/regs-spi.h>