Add tilapia (Nexus 7 GSM)

Change-Id: I4380e3272cfc6edde6a3d4662d269d163fddcdb3
diff --git a/CONTRIBUTORS.mkdn b/CONTRIBUTORS.mkdn
index 31e833a..25d409c 100644
--- a/CONTRIBUTORS.mkdn
+++ b/CONTRIBUTORS.mkdn
@@ -10,7 +10,7 @@
 * __B&N NookColor (encore):__ eyeballer, fattire, keyodi, krylon360, sluo (NookieDevs)
 * __Google Galaxy Nexus:__ , bekit, Bumble-Bee, burnsra, KalimochoAz
 * __Google Nexus S:__ burnsra, KalimochoAz
-* __Google Nexus 7:__ 
+* __Google Nexus 7:__ fattire, nemith (GSM)
 * __HTC Evo 4G LTE:__ kushdeck, toastcfh
 * __HTC One S:__ intervigil, xkonni
 * __HTC One XL:__ h8rift, intervigil