RFR: 8282615: G1: Fix some includes

[Thomas Schatzl]

Hi all,

  can I have reviews for this simple change that fixes includes in some G1 files? The most serious is probably the one in `g1CardSetContainers.hpp` which included a `.inline.hpp` file directly.

Testing: local compilation, gha

Thanks,
  Thomas

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Commit messages:
 - Initial version

Changes: https://git.openjdk.java.net/jdk/pull/7677/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7677&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282615
  Stats: 4 lines in 4 files changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7677.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7677/head:pull/7677

PR: https://git.openjdk.java.net/jdk/pull/7677