Input: ims-pcu - replace some spaces with tabs

Unnecessary spaces have been replaced with tab space. This is done to
maintain code uniformity.
Signed-off-by: Shubhankar Kuranagatti <shubhankarvk@gmail.com>
Link: https://lore.kernel.org/r/20210428091050.ryr7kxlxre7uhye4@kewl-virtual-machineSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>