scripts: remove all unnecessary semicolon

Signed-off-by: William Dauchy <william@gandi.net>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
scripts: remove all unnecessary parens after 'if' keyword

Signed-off-by: William Dauchy <william@gandi.net>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
scripts: fix all bad-indentation (spaces)

Signed-off-by: William Dauchy <william@gandi.net>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>