Revert "Asus F2A85-M: Activate IOMMU support"

This reverts commit eed28f97b375a9469a2872996c19eb102647052e.

For whatever reason, the dependencies were lost in Gerrit and the
commit [1] was submitted without its dependencies. As a result
buidling the ASUS F2A85-M fails now [2] and therefore commits
based on this commit fail to pass the buid tests by Jenkins.

    […]
    Created CBFS image (capacity = 8387656 bytes)
        LINK       cbfs/fallback/romstage_null.debug
        CC         cbfs/fallback/coreboot_ram.debug
    coreboot-builds/asus_f2a85-m/generated/coreboot_ram.o:(.data+0x16b9c): undefined reference to `GnbIommuScratchMemoryRangeInterface'
    collect2: error: ld returned 1 exit status
    make: *** [coreboot-builds/asus_f2a85-m/cbfs/fallback/coreboot_ram.debug] Error 1
    make: *** Waiting for unfinished jobs....
    coreboot-builds/asus_f2a85-m/mainboard/asus/f2a85-m/buildOpts.romstage.o:(.data+0x3d8): undefined reference to `GnbIommuScratchMemoryRangeInterface'
    collect2: error: ld returned 1 exit status
    make: *** [coreboot-builds/asus_f2a85-m/cbfs/fallback/romstage_null.debug] Error 1
    […]

Therefore revert the commit to get the tree working again and
submit this patch with its dependencies again.

[1] http://review.coreboot.org/#/c/3317/
[2] http://qa.coreboot.org/job/coreboot-gerrit/6618/testReport/junit/(root)/board/i386_asus_f2a85_m/

Change-Id: I911755884da09eb0a0651b8db07ee2a32e6eaaaa
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/3373
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2 files changed