Revert "PCI: Coalesce host bridge contiguous apertures"

This reverts commit 0bb741bf which is
commit 65db0405 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Ia7a6f33123e7679b76d7134fea3745e4731d9b27
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>