COMPMID-1799 (Nightly) CLL2NormalizeLayer mismatches

Changed random distribution to [1, 2] as values close to
zero generate mismatches.

Change-Id: I4a00fc4f445b123dea624dd8459efce945f06126
diff --git a/tests/validation/fixtures/L2NormalizeLayerFixture.h b/tests/validation/fixtures/L2NormalizeLayerFixture.h
index 70011b7..574722b 100644
--- a/tests/validation/fixtures/L2NormalizeLayerFixture.h
+++ b/tests/validation/fixtures/L2NormalizeLayerFixture.h
@@ -55,7 +55,7 @@
     template <typename U>
     void fill(U &&tensor)
     {
-        std::uniform_real_distribution<> distribution(-1.f, 1.f);
+        std::uniform_real_distribution<> distribution(1.f, 2.f);
         library->fill(tensor, distribution, 0);
     }