staging: gasket: Fix pci remove/rescan for kernel module build.

For driver build as module pci_fixup_header approach doesn't work.
This causes apex pci class to remain 0xff and BARs remain
unclaimed. Adding a retry with explicit fixup function call
workarounds the problem.

Bug: 129287752
Change-Id: Id5ff85ef427d3740706a214d3beb1c9bbf42ab5a
Signed-off-by: Leonid Lobachev <leonidl@google.com>