board/kria/kv260/kv260.sh: remove trailing spaces

Signed-off-by: Neal Frager <neal.frager@amd.com>
[Arnout: update .checkpackageignore]
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>
(cherry picked from commit 6aa637737fd04cbf0f69fb0d2b9eeeba029c8570)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

board/zynqmp/kria/kv260/kv260.sh

@@ -1,8 +1,8 @@
 #!/bin/sh
 
 # This is a temporary work around for generating kv260 u-boot.itb.
-# The problem is there is no way to currently configure u-boot to apply 
-# the carrier board dtb overlay during build, so all kv260 carrier board 
+# The problem is there is no way to currently configure u-boot to apply
+# the carrier board dtb overlay during build, so all kv260 carrier board
 # drivers are missing.
 # This will be removed when u-boot can build the kv260 u-boot.itb natively.