drivers/rtc/rtc-pxa.c: avoid cpuid checking

pxa-rtc is widely used in pxa27x/pxa3xx/pxa93x/pxa95x. Checking cpuid in
pxa-rtc driver is unnecessary since we assign on-chip device in soc files.
Signed-off-by: NHaojian Zhuang <haojian.zhuang@marvell.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-pxa.c

@@ -454,10 +454,7 @@ static struct platform_driver pxa_rtc_driver = {
 
 static int __init pxa_rtc_init(void)
 {
-	if (cpu_is_pxa27x() || cpu_is_pxa3xx())
-		return platform_driver_probe(&pxa_rtc_driver, pxa_rtc_probe);
-
-	return -ENODEV;
+	return platform_driver_probe(&pxa_rtc_driver, pxa_rtc_probe);
 }
 
 static void __exit pxa_rtc_exit(void)