thermal: imx_thermal: rework driver to be reused

Rework imx_thermal driver to be used across i.MX
processor that support thermal sensor

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
diff --git a/include/configs/mx6sxsabresd.h b/include/configs/mx6sxsabresd.h
index 74d04a0..f30c148 100644
--- a/include/configs/mx6sxsabresd.h
+++ b/include/configs/mx6sxsabresd.h
@@ -177,7 +177,7 @@
 #define CONFIG_PCIE_IMX_POWER_GPIO	IMX_GPIO_NR(2, 1)
 #endif
 
-#define CONFIG_IMX6_THERMAL
+#define CONFIG_IMX_THERMAL
 
 #define CONFIG_CMD_TIME