media: mx2_camera: remove cpu_is_xxx by using platform_device_id

It changes the driver to use platform_device_id rather than cpu_is_xxx
to determine the controller type, and updates the platform code
accordingly.

As the result, mach/hardware.h inclusion gets removed from the driver.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Javier Martin <javier.martin@vista-silicon.com>
Cc: linux-media@vger.kernel.org
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index a5f0e3b..6170c03 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -224,7 +224,7 @@
 	clk_register_clkdev(clk[per3_gate], "per", "imx-fb.0");
 	clk_register_clkdev(clk[lcdc_ipg_gate], "ipg", "imx-fb.0");
 	clk_register_clkdev(clk[lcdc_ahb_gate], "ahb", "imx-fb.0");
-	clk_register_clkdev(clk[csi_ahb_gate], "ahb", "mx2-camera.0");
+	clk_register_clkdev(clk[csi_ahb_gate], "ahb", "imx27-camera.0");
 	clk_register_clkdev(clk[usb_div], "per", "fsl-usb2-udc");
 	clk_register_clkdev(clk[usb_ipg_gate], "ipg", "fsl-usb2-udc");
 	clk_register_clkdev(clk[usb_ahb_gate], "ahb", "fsl-usb2-udc");
@@ -251,8 +251,8 @@
 	clk_register_clkdev(clk[i2c2_ipg_gate], NULL, "imx21-i2c.1");
 	clk_register_clkdev(clk[owire_ipg_gate], NULL, "mxc_w1.0");
 	clk_register_clkdev(clk[kpp_ipg_gate], NULL, "imx-keypad");
-	clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "mx2-camera.0");
-	clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "mx2-camera.0");
+	clk_register_clkdev(clk[emma_ahb_gate], "emma-ahb", "imx27-camera.0");
+	clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "imx27-camera.0");
 	clk_register_clkdev(clk[emma_ahb_gate], "ahb", "m2m-emmaprp.0");
 	clk_register_clkdev(clk[emma_ipg_gate], "ipg", "m2m-emmaprp.0");
 	clk_register_clkdev(clk[iim_ipg_gate], "iim", NULL);