properly reinitialize aws sdk logger
properly reinitialize aws sdk logger

Signed-off-by: dmitriy kalinin <0638f5af938d97bf839390c6283ef9e40c331b8e@pivotallabs.com>

jfuerth/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,jfuerth/bosh-aws-cpi-release,jfuerth/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,wcamarao/bosh-aws-cpi-release,wcamarao/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,wcamarao/bosh-aws-cpi-release