Change #define to _BLKID_TYPES_H

blkid_types.h and ext_types.h having the exact same content results in
mismatches in remote RBE builds. Given blkid_types.h is actually
supposed to be different, changing this to remove the mismatch.

Test: Ran a build, and all e2fsprogs mismatches went away between
local/remote.

Change-Id: I63ab1719ee1d0ccd28907f0bc99531260251fa99
5 files changed