8328524: [x86] StringRepeat.java failure on linux-x86: Could not reserve enough space for 2097152KB object heap

Reviewed-by: rriggs, mdoerr, sgehwolf

Author: GoeLin

test/jdk/java/lang/String/StringRepeat.java

@@ -31,7 +31,7 @@
  * @test
  * @summary This exercises String#repeat patterns with 16 * 1024 * 1024 repeats.
  * @requires os.maxMemory >= 2G
- * @requires !(os.family == "windows" & sun.arch.data.model == "32")
+ * @requires vm.bits == "64"
  * @run main/othervm -Xmx2g StringRepeat 16777216
  */