Update new reviewer name and mail id

Change-Id: I215751f271e6364868419ace3dc0a3f3ff0d93d9
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index de0933f..ca7ebba 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -44,4 +44,4 @@
 
 M:  George Keishing <gkeishin@in.ibm.com> <gkeishin!>
 M:  Michael Walsh <micwalsh@us.ibm.com>
-R:  Sivas SRR <sivas.srr@in.ibm.com>
+R:  Anusha Dathatri <adathatr@in.ibm.com>