fix wrong devicemapper path
fix wrong devicemapper path

hyper ERROR: Error from daemon's response: stat /var/lib/docker/devicemapper/metadata/efeefa308a6f950fe8136c23cdf9a3316c2af298dbfcbabcbfe81fa350441074: no such file or directory

Signed-off-by: Lai Jiangshan <b337eedf453972390e4695e362aeea2634ef4e0c@gmail.com>

bergwolf/hyperd,gao-feng/hyper-public,laijs/hyper,hyperhq/hyperd,hyperhq/hyper,gao-feng/hyper,hyperhq/hyperd,laijs/hyper,gao-feng/hyper,laijs/hyper,gnawux/hyper,laijs/hyper,WIZARD-CXY/hyper,hyperhq/hyper,ZJU-SEL/hyper,gao-feng/hyper,gao-feng/hyper-public,hyperhq/hyperd,feiskyer/hyper,bergwolf/hyperd,bergwolf/hyperd,ZJU-SEL/hyper,laijs/hyperd,ZJU-SEL/hyper,feiskyer/hyper,bergwolf/hyperd,gnawux/hyper,laijs/hyperd,gao-feng/hyper,gnawux/hyper,WIZARD-CXY/hyper,WIZARD-CXY/hyper,feiskyer/hyper,ZJU-SEL/hyper,WIZARD-CXY/hyper,hyperhq/hyper,feiskyer/hyper,hyperhq/hyper,laijs/hyperd,gao-feng/hyper-public