build: Add ASCII logo to edify script

Less boring, don't you think?
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                   /     www.slimroms.net|
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              /    / /   \___/____   ____ 
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 ___________/    /   |   |   |           |
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|              /     |   |   |   |   |   |
|_____________/      \___^___^___^___^___/

Change-Id: I8bbd68e5be18753fde34cd76f24038f5d0d3a190
Merge "build: Add ASCII logo to edify script" into kk4.4