build: Add ASCII logo to edify script

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

Change-Id: I8bbd68e5be18753fde34cd76f24038f5d0d3a190
Merge "build: Add ASCII logo to edify script" into kk4.4
Merge remote-tracking branch 'upstream/kk4.4' into kk4.4-mo4