Staging: rtl8187se: fixed space style issues in r8180_core.c

This is a patch to the r8180_core.c file that fixes the space
style issues found by the checkpatch.pl tool.
Signed-off-by: NPrashant P. Shah <pshah.mumbai@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>