keucr: fix some alignment- and whitespace-problems

resolves checkpatch errors and warnings regarding whitespace around
operators, line lengths and indentation.

Signed-off-by: Laura Lawniczak <laura.lawniczak@googlemail.com>
Signed-off-by: Johannes Schilling <of82ecuq@cip.cs.fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>