USB: omap_udc: clean up comment

Spelling replacement
reactiviting to reactivating

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20220418143906.475932-1-trix@redhat.com


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