nitro_enclaves: Add fixes for checkpatch match open parenthesis reports

Update the codebase formatting to fix the reports from the checkpatch
script, to match the open parenthesis.

Reviewed-by: George-Aurelian Popescu <popegeo@amazon.com>
Signed-off-by: Andra Paraschiv <andraprs@amazon.com>
Link: https://lore.kernel.org/r/20210827154930.40608-6-andraprs@amazon.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>