broadcom/blast/devicetree.cb: Remove a trailing whitespace

Change-Id: I76e54669a0e129adf6c7873585c62f692a5d509f
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: http://review.coreboot.org/6346
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
1 file changed