git: openjdk/jdk15u-dev: 8257547: Handle multiple prereqs on the same line in deps files

[Yuri Nesterenko]

Changeset: a92bbe82
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2021-04-26 17:50:34 +0000
URL:       https://git.openjdk.java.net/jdk15u-dev/commit/a92bbe82

8257547: Handle multiple prereqs on the same line in deps files

Backport-of: 36209b70daf4df54435b6acd7092b77d2b5053df

! make/common/NativeCompilation.gmk
+ test/make/TestFixDepsFile.gmk
! test/make/TestMake.gmk