staging: rtl8187se: Delete some innecesary whitespaces

Delete some whitespaces (whitespace before a quoted newline, space
at the start of a line and space before a tabs) as the codingStyle of
the kernel recommends.

Fix checkpatch.pl errors:
WARNING: unnecessary whitespace before a quoted newline
WARNING: please, no spaces at the start of a line
WARNING: please, no space before tabs

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>