dtc: Remove bogus break statement

Commit 0738774fcc34b78a708a127fb4b2f193d08c94ba introduced some
incorrect indentation / bracketing in unflatten_tree().  By luck, the
extra break statement intended to be within an if block, but actually
afterwards has no semantic effect.  Still, this patch gets rid of it
for cleanliness.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
1 file changed