Tons of "no unit name" spam with make dtbs

[Tony Lindgren]

Hey Rob,

I'm seeing tons of dtc spam with make dtbs (about 23k lines
with multi_v7_defconfig!) with commit fa38a82096a1 ("scripts/dtc:
Update to upstream version 53bf130b1cdd").

Introducing something like this few days with merge window
about to open seems to be in the "a bit intrusive" category
to me :)

Probably some of these changes should be reverted?

Regards,

Tony