superio/fintek: Add required changes so F81216H can be used

The amd/lamar mainboard is the first mainboard to use the f81216h.
These changes are needed to fix up commit 27a63d77 so the
Super I/O builds and functions correctly.
  - Wrong #include name
  - Removed global variable in romstage
  - Missing "case" in switch()

Change-Id: I1b2058a915b776664fba14e4341e8a410b50330f
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/8255
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
3 files changed