Fix class selection size check
Fix class selection size check

Class C selection check should return true in this case:
```
fDataEnabled = true
nMaxDatacarrierBytes = 18

00000000000000010000000000bc614e
nDataSize = 16
nTotalSize = 18

nTotalSize < nMaxDatacarrierBytes && fDataEnabled =
18         < 18                                   = false << unexpected
```

OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore,OmniLayer/omnicore