configs: migrate CONFIG_IMX_THERMAL to defconfigs

Done via moveconfig.py

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/xpress_spl_defconfig b/configs/xpress_spl_defconfig
index 935450e..aee059d 100644
--- a/configs/xpress_spl_defconfig
+++ b/configs/xpress_spl_defconfig
@@ -51,6 +51,7 @@
 CONFIG_PHY_SMSC=y
 CONFIG_MII=y
 CONFIG_MXC_UART=y
+CONFIG_IMX_THERMAL=y
 CONFIG_USB=y
 CONFIG_USB_STORAGE=y
 CONFIG_OF_LIBFDT=y