RFR: 8336343: Add more known sysroot library locations for ALSA

[Aleksey Shipilev]

Following JDK-8257913, it would be more convenient to search into more paths in sysroot for ALSA as well. Currently, this is the only thing that is missing for me to build from the crosstool-ng generated sysroot. Without these, we have to provide the additional `--with-alsa-lib` configuration param.

Additional testing:
 - [x] JDK mainline builds with the patch and crosstool-ng without problems now
 - [ ] GHA
 - [x] A matrix of Server/Zero builds with GCC 10

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Commit messages:
 - Fix

Changes: https://git.openjdk.org/jdk/pull/20173/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20173&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336343
  Stats: 19 lines in 1 file changed: 19 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/20173.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20173/head:pull/20173

PR: https://git.openjdk.org/jdk/pull/20173