staging: ks7010: fix some style issues in ks_hostif.c

Fix some checkpatch complains about long lines in some
parts of the code. It also fix some lines where spaces
instead of tabs were inserted.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>