Fix deapexer usage in prebuilt_apex/apex_set

A previous change to the deapexer script to check that blkid_path and
fsckerofs_path were set broke the scripts/unpack-prebuilt-apex.sh
scripts use of deapexer. This change fixes it by passing the paths
through to the script which then passes it on to deapexer.

Bug: 255963179
Bug: 240288941
Bug: 259958590
Test: m MODULE_BUILD_FROM_SOURCE=false droid
Change-Id: Ief7f36219b7fe1cf7104c08163e10d8e39f181d0