meta-inspur: Add George as Maintainer

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I81a19a74f3b0896c62812c1621ba66c7618403a0
diff --git a/MAINTAINERS b/MAINTAINERS
index af86b18..8606eaf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -43,5 +43,5 @@
 -------------------------
 
 M:  John Wang <wangzqbj@inspur.com> <JohnWang!>
-R:  George Liu <liuxiwei@inspur.com> <liuxiwei!>
+M:  George Liu <liuxiwei@inspur.com> <liuxiwei!>
 R:  Lei Yu <mine260309@gmail.com> <LeiYU!>