Fix some issues reported by lintian

Fix some issues reported by lintian

• Update standards version to 4.6.0, no changes needed. (out-of-date-standards-version)

• Avoid explicitly specifying -Wl,--as-needed linker flag. (debian-rules-uses-as-needed-linker-flag)

This merge proposal was created automatically by the Janitor bot. For more information, including instructions on how to disable these merge proposals, see https://janitor.debian.net/lintian-fixes.

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The bot will automatically update the merge proposal to resolve merge conflicts or close the merge proposal when all changes are applied through other means (e.g. cherry-picks). Updates may take several hours to propagate.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/libofa/9eab1523-9f26-4ba8-9701-71427480a2d8.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/05/b542eee66748e8ab869644388b00fc40ead192.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/68/d10da4cbee8f90e4f7bb389b35e436e856468b.debug

No differences were encountered between the control files of package **libofa0**

Control files of package libofa0-dbgsym: lines which differ (wdiff format)

• Build-Ids: 68d10da4cbee8f90e4f7bb389b35e436e856468b 05b542eee66748e8ab869644388b00fc40ead192

No differences were encountered between the control files of package **libofa0-dev**

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