[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration model

As well as moving all the device declarations to a single one in devices.c
this causes all platforms to register the I/O and interrupt resources for
the AC97 controller.

Cc: eric miao <eric.miao@marvell.com>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Jürgen Schindele <linux@schindele.name>
Cc: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 881d1a7..b852eb1 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -12,6 +12,7 @@
 extern struct platform_device pxa_device_i2s;
 extern struct platform_device pxa_device_ficp;
 extern struct platform_device pxa_device_rtc;
+extern struct platform_device pxa_device_ac97;
 
 extern struct platform_device pxa27x_device_i2c_power;
 extern struct platform_device pxa27x_device_ohci;