thermal: Add thermal driver for i.MX8M

The driver is ported form Linux Kernel and support driver model.
Users need to provide the tmu node and sensors nodes in DTB.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index ef2929d..15fe847 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -7,3 +7,4 @@
 obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o
 obj-$(CONFIG_IMX_SCU_THERMAL) += imx_scu_thermal.o
 obj-$(CONFIG_TI_DRA7_THERMAL) += ti-bandgap.o
+obj-$(CONFIG_IMX_TMU) += imx_tmu.o