BUG: fix gdcm version in GDCMImageIO.

GDCM_MINOR_VERSION -> GDCM_BUILD_VERSION

Change-Id: I5a1f3e76f4dae8176f16a2c31bfa28f3f24727f7
Merge topic 'gdcm_version_release'

33a7e716 BUG: fix gdcm version in GDCMImageIO.