hg: jdk/submit: 8230079: Update test document by changing "TIMEOUT" to "TIMEOUT_FACTOR"

[erik.joelsson at oracle.com]

Changeset: c414c554b38b
Author:    erikj
Date:      2019-08-26 07:14 -0700
URL:       https://hg.openjdk.java.net/jdk/submit/rev/c414c554b38b

8230079: Update test document by changing "TIMEOUT" to "TIMEOUT_FACTOR"
Reviewed-by: erikj
Contributed-by: Wang Xue <wangxue at loongson.cn>

! doc/building.html
! doc/testing.html
! doc/testing.md