staging: ks7010: coding style fix: use tabs for indent

Added tabs for indent to fix the checkpatch error.
Signed-off-by: Aliya Rahmani <aliyarahmani786@gmail.com>
Link: https://lore.kernel.org/r/20220413204648.60358-1-aliyarahmani786@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>