MAINTAINERS: ti-soc-thermal: add a co-maintainer and update the entry

Add myself as a co-maintainer for ti-soc-thermal

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 42e65d1..f1d42bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11046,6 +11046,7 @@
 
 TI BANDGAP AND THERMAL DRIVER
 M:	Eduardo Valentin <edubezval@gmail.com>
+M:	Keerthy <j-keerthy@ti.com>
 L:	linux-pm@vger.kernel.org
 L:	linux-omap@vger.kernel.org
 S:	Maintained