linux.inc: devicetree is used on hh boxes, drop dt handling
linux.inc: devicetree is used on hh boxes, drop dt handling

If later required, we should add an extra kernel-dtb.bbclass for generic
handling of dt.

Signed-off-by: Dmitry Eremin-Solenikov <b6edad08270b2e4ffbcb0879e25a0e29a48c5275@gmail.com>
Signed-off-by: Paul Eggleton <737d4dae46a541673d7bf4e0d5b32714b16528d8@linux.intel.com>

bluelightning/meta-handheld,bluelightning/meta-handheld