RFR: 8247895: SHA1PRNGReseed.java is calling setSeed(0)

[Sibabrata Sahoo]

The Test is updated to use positive integer as seed for SecureRandom.

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Commit messages:
 - 8247895: SHA1PRNGReseed.java is calling setSeed(0)

Changes: https://git.openjdk.java.net/jdk/pull/3114/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3114&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247895
  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3114.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3114/head:pull/3114

PR: https://git.openjdk.java.net/jdk/pull/3114