MAINTAINERS: fix Chunhui Jia's email address

Email address had double @ symbols.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: If1829dcbabfa18f01a317b63cbafba2bd71ba8a8
diff --git a/MAINTAINERS b/MAINTAINERS
index 0b83920..c80efd4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -65,4 +65,4 @@
 M:  Vernon Mauery <vernon.mauery@linux.intel.com> <vmauery!>
 M:  James Feist <james.feist@linux.intel.com> <jfei!>
 M:  Puli, Apparao <apparao.puli@linux.intel.com> <apuli1!>
-R:  Chunhui Jia <chunhui.jia@@linux.intel.com> <cjia_!>
+R:  Chunhui Jia <chunhui.jia@linux.intel.com> <cjia_!>