[clDNN] The outputs are incorrect for some operations with RELU1

[Christywl]

Test Env: Chromium Version: nightly build 70.0.3503.0 (b7ce158) Platform: Windows(Dell XPS 13), Linux Ubuntu 16.04

Expected Result: The test should pass.

Actual Result: The outputs are incorrect for some operations with RELU1. For example:

• check result for Conv 1 h3 w2 same relu1 example-1

How to Reproduce:

1. Launch chromium and enable WebML flag
2. Visit https://brucedai.github.io/nt/test/issue_relu1.html?backend=cldnn
3. Check the failed RELU1 tests:
   • check result for Add relu1 example
   • check result for Avg pool float relu1 example/1
   • check result for Conv 1 h3 w2 same relu1 example-1
   • check result for Conv 1 h3 w2 same relu1 example-2
   • check result for Conv 1 h3 w2 valid relu1 example-1
   • check result for Conv 1 h3 w2 valid relu1 example-2
   • check result for Conv 3 h3 w2 same relu1 example-1
   • check result for Conv 3 h3 w2 same relu1 example-2
   • check result for Conv 3 h3 w2 valid relu1 example-1
   • check result for Conv 3 h3 w2 valid relu1 example-2
   • check result for Depthwise conv relu1 example-1
   • check result for Depthwise conv relu1 example-2
   • check result for Fully connected float relu1 example
   • check result for Max pool float relu1 example/1
   • check result for Mul relu1 example

[Christywl]

This issue was fixed on the nightly build a7c5589.