USB: Fix s3c-hsotg build following Samsung platform header moves

Fix a reference to regs-sys.h got missed in the reorganisation of
the Samsung platform headers targetted for 2.6.34.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

drivers/usb/gadget/s3c-hsotg.c

@@ -30,7 +30,7 @@
 
 #include <plat/regs-usb-hsotg-phy.h>
 #include <plat/regs-usb-hsotg.h>
-#include <plat/regs-sys.h>
+#include <mach/regs-sys.h>
 #include <plat/udc-hs.h>
 
 #define DMA_ADDR_INVALID (~((dma_addr_t)0))