properly cast some values to avoid wdk warnings
properly cast some values to avoid wdk warnings

Implicitly casting these int's to uint8_t's was causing compiler
warnings - so make these casts explicit.

hillu/yara,VirusTotal/yara,VirusTotal/yara,hillu/yara,plusvic/yara,wxsBSD/yara,pombredanne/yara,cblichmann/yara,wxsBSD/yara,wxsBSD/yara,hillu/yara,plusvic/yara,plusvic/yara,rednaga/yara,cblichmann/yara,wxsBSD/yara,plusvic/yara,rednaga/yara,pombredanne/yara,plusvic/yara,rednaga/yara,hillu/yara,cblichmann/yara,tanium/yara,cblichmann/yara,pombredanne/yara,tanium/yara,VirusTotal/yara,pombredanne/yara,VirusTotal/yara,wxsBSD/yara,cblichmann/yara,tanium/yara,pombredanne/yara,hillu/yara,VirusTotal/yara