kernel.mk: append more than one DTB to a kernel binary

TARGET_KERNEL_DTB may contain more than one DTB.
All DTBs defined in TARGET_KERNEL_DTB will be appended to kernel binary
at the end.

BUG: 28454254

Change-Id: I3e64fe149e4262ce931158656ad0103358d52d19
Signed-off-by: Dzmitry Yatsushkevich <dmitryya@nestlabs.com>
1 file changed