ARM: mx3: introduce SOC_IMX31 and SOC_IMX35

Additionally convert some known to be good usages to the new
names.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/plat-mxc/devices/platform-spi_imx.c b/arch/arm/plat-mxc/devices/platform-spi_imx.c
index bf2cb47..8f2b60a 100644
--- a/arch/arm/plat-mxc/devices/platform-spi_imx.c
+++ b/arch/arm/plat-mxc/devices/platform-spi_imx.c
@@ -49,7 +49,7 @@
 };
 #endif /* ifdef CONFIG_SOC_IMX27 */
 
-#ifdef CONFIG_ARCH_MX31
+#ifdef CONFIG_SOC_IMX31
 const struct imx_spi_imx_data imx31_cspi_data[] __initconst = {
 #define imx31_cspi_data_entry(_id, _hwid)				\
 	imx_spi_imx_data_entry(MX31, CSPI, "imx31-cspi", _id, _hwid, SZ_4K)
@@ -57,16 +57,16 @@
 	imx31_cspi_data_entry(1, 2),
 	imx31_cspi_data_entry(2, 3),
 };
-#endif /* ifdef CONFIG_ARCH_MX31 */
+#endif /* ifdef CONFIG_SOC_IMX31 */
 
-#ifdef CONFIG_ARCH_MX35
+#ifdef CONFIG_SOC_IMX35
 const struct imx_spi_imx_data imx35_cspi_data[] __initconst = {
 #define imx35_cspi_data_entry(_id, _hwid)                           \
 	imx_spi_imx_data_entry(MX35, CSPI, "imx35-cspi", _id, _hwid, SZ_4K)
 	imx35_cspi_data_entry(0, 1),
 	imx35_cspi_data_entry(1, 2),
 };
-#endif /* ifdef CONFIG_ARCH_MX35 */
+#endif /* ifdef CONFIG_SOC_IMX35 */
 
 #ifdef CONFIG_ARCH_MX51
 const struct imx_spi_imx_data imx51_cspi_data __initconst =