Staging: hv: Fix macros, tab errors and warning in drivers/staging/hv/hv_mouse.c

This is a patch to the hv_mouse.c file that fixed up macros, tab
errors and warning found by the checkpatch.pl tools.

Signed-off-by: Ruslan Pisarev <ruslan@rpisarev.org.ua>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>