Fix default values in recipes

• e6342a7c image-sdk: Fix the imageroot default value
• d21b038c Default to the 18.12 suite in every recipe
• 5f0d4fb5 ospack: Fix default type name

added 7 commits

• e6342a7c...5283db0d - 4 commits from branch master
• fda24e01 - ospack: Fix default type name
• 49f547cc - Default to the 18.12 suite in every recipe
• 425cbe8d - image-sdk: Fix the imageroot default value

Compare with previous version

merged