misc: pti: Remove unparsable empty line in function header

The kerneldoc tooling/parsers/validators get confused if non-
standard formatting is used. The first line after the kerneldoc
identifier '/**' must not be blank else the following warnings
will be issued:

drivers/misc/pti.c:902: warning: Cannot understand *
on line 902 - I thought it was a doc line

Cc: J Freyensee <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/pti.c

···
 };
 
 /**
- *
  * pti_init()- Overall entry/init call to the pti driver.
  *             It starts the registration process with the kernel.
  *