[DEBUG] Typo fix
[DEBUG] Typo fix

- Caused a build error when a library had prebuiltdeps and no
"classic" deps.

cvramire/ARSDKBuildUtils,Parrot-Developers/ARSDKBuildUtils,pwkalana9/ARSDKBuildUtils,niavok/ARSDKBuildUtils,aoi/ARSDKBuildUtils,cvramire/ARSDKBuildUtils,aoi/ARSDKBuildUtils,Parrot-Developers/ARSDKBuildUtils,pwkalana9/ARSDKBuildUtils,niavok/ARSDKBuildUtils