libefiwrapper: fix double free in smbios module
libefiwrapper: fix double free in smbios module

Object 'st->ConfigurationTable' is freed by calling 'realloc',
but it is double freed by calling 'free'.

Change-Id: I16851a2a6652569d482f6ae19db544666af35540
Signed-off-by: sunxunou <1a6c27cc3e297c88d3acb69ec79d948a370c2cf7@intel.com>
Tracked-On: https://jira01.devtools.intel.com/browse/OAM-40631
Reviewed-on: https://android.intel.com:443/555046

herbert-de-vaucanson/efiwrapper,herbert-de-vaucanson/efiwrapper