tools: ynl: remove extraneous ; after statements

There are a couple of statements with two following semicolons,
replace these with just one semicolon.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://patch.msgid.link/20240802113436.448939-1-colin.i.king@gmail.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>