xsm/flask: code style formatting

xsm/flask: code style formatting

This is a quick code style cleanup patch for xsm/flask. The files flask_op.c
and hooks.c are Xen specific, thus full code style rules were applied. The
remaining files are from Linux and therefore only trailing whitespace was
remove from those files.

Signed-off-by: Daniel P. Smith <dpsmith@apertussolutions.com>
Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>