[ARM] pxa: fix incorrect CONFIG_CPU_PXA27x to CONFIG_PXA27x

Reported-by: NChristian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Signed-off-by: NEric Miao <eric.y.miao@gmail.com>

drivers/usb/gadget/pxa27x_udc.c

@@ -2561,7 +2561,7 @@ static void pxa_udc_shutdown(struct platform_device *_dev)
 		udc_disable(udc);
 }
 
-#ifdef CONFIG_CPU_PXA27x
+#ifdef CONFIG_PXA27x
 extern void pxa27x_clear_otgph(void);
 #else
 #define pxa27x_clear_otgph()   do {} while (0)

drivers/usb/host/ohci-pxa27x.c

@@ -203,7 +203,7 @@ static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci)
 	__raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR);
 }
 
-#ifdef CONFIG_CPU_PXA27x
+#ifdef CONFIG_PXA27x
 extern void pxa27x_clear_otgph(void);
 #else
 #define pxa27x_clear_otgph()	do {} while (0)