[jdk11u-dev] RFR: 8256267: Relax compiler/floatingpoint/NaNTest.java for x86_32 and lower -XX:+UseSSE

[Aleksey Shipilev]

Fixes a test x86_32.

Additional testing: 
 - [x] Affected test on x86_32 with `-XX:UseSSE=1`, used to fail, now passes

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Commit messages:
 - Backport a14f02d8e59156a26c3509e21f2b19bf23cb7c1d

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/112/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=112&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8256267
  Stats: 38 lines in 1 file changed: 33 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/112.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/112/head:pull/112

PR: https://git.openjdk.java.net/jdk11u-dev/pull/112