Establish 7u40 as the current upstream for java{,x}.sql.

These packages have not currently been updated to OpenJDK 8u121-b13.

Bug: 35910877
Test: Regenerated the upstream comparison spreadsheet via the following
      command, and verified that everything looked correct:
      make libcore-compare-upstreams && java -jar \
      out/host/linux-x86/framework/libcore-compare-upstreams.jar > u.tsv
Change-Id: I9776d2d642fe79a381cd686795d2b4d5675fb1b7
1 file changed