Fix soname

-Wl,soname= was missing the .so extension

Change-Id: Ide5f2b22f5c37a20463a2314047560e501b95987
diff --git a/cc/cc.go b/cc/cc.go
index f64107b..1c28fea 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -824,13 +824,13 @@
 				"-nostdlib",
 				"-Wl,--gc-sections",
 				sharedFlag,
-				"-Wl,-soname," + libName,
+				"-Wl,-soname," + libName + sharedLibraryExtension,
 			}
 		} else {
 			return []string{
 				"-Wl,--gc-sections",
 				sharedFlag,
-				"-Wl,-soname," + libName,
+				"-Wl,-soname," + libName + sharedLibraryExtension,
 			}
 		}
 	} else {