staging: iio: impedance-analyzer: add blank line after declaration
staging: iio: impedance-analyzer: add blank line after declaration

This fixes the following checkpatch.pl warning:
WARNING: Missing a blank line after declarations.

Signed-off-by: Catalina Mocanu <49bd175747cdb3fb144867da9b5eff323011a23e@gmail.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs