Add ART module members to linkerconfig owners.

Test: build/make/tools/checkowners.py -c system/linkerconfig/OWNERS
Change-Id: Icd285aa36ffb560df2700ed09223ca9f082e7ee5
diff --git a/OWNERS b/OWNERS
index 41f7379..6621d68 100644
--- a/OWNERS
+++ b/OWNERS
@@ -2,4 +2,8 @@
 danalbert@google.com
 enh@google.com
 jiyong@google.com
-rprichard@google.com
\ No newline at end of file
+rprichard@google.com
+mast@google.com
+oth@google.com
+rpl@google.com
+ngeoffray@google.com