use top_srcdir in stead of srcdir

Dependencies

• [2] G2ZB6464 first test, not yet in buildprocess

Change contents

• replacement in tests/Makefile.am at line 6
  [2.148]→[2.148:252](∅→∅)
  − db.sqlite : $(srcdir)/src/sql/hydra-sqlite.sql

  − sqlite3 db.sqlite < $(srcdir)/src/sql/hydra-sqlite.sql
  [2.148]

  [2.252]
  + db.sqlite : $(top_srcdir)/src/sql/hydra-sqlite.sql

  + sqlite3 db.sqlite < $(top_srcdir)/src/sql/hydra-sqlite.sql