Patch merged into coreboot/master: c3e7c4e Clean up architecture-specific Kconfigs

the following patch was just integrated into master:
commit c3e7c4e7b43ebba54a141896b74572eaa9e75abf
Author: Julius Werner 
Date:   Fri Sep 19 13:18:16 2014 -0700

Clean up architecture-specific Kconfigs

It's an unfortunate side effect of our different-archs-per-stage
    mechanism that all src/arch/*/Kconfig files are always parsed with no
    if blocks to exclude them if they're not relevant. This makes it very
    easy to accidentally rely on a Kconfig default set by a totally
    different and not applying architecture.

This patch moves a few Kconfigs from ARM and X86 that leaked out like
    this into a common Kconfig file for clarity. It also gives ARM64 its
    own BOOTBLOCK_CUSTOM mechanism so that it doesn't leech off the ARM one
    (currently not used by any board).

In the future, we should maybe prefix all options in the arch/*/Kconfig
    files with the architecture name (such as X86_BOOTBLOCK_NORMAL and
    ARM_LPAE are already doing), to make it more apparent when they are used
    in the wrong place.

BUG=None
    TEST=None (tested together with dependent changes)

Change-Id: I3e8bb3dfbb2c4edada621ce16d130bd7387d4eb8
    Signed-off-by: Patrick Georgi 
    Original-Commit-Id: 5528aa9252cdf711af3c160da387c6a7bebe9e76
    Original-Change-Id: Ieb2d79bae6c6800be0f93ca3489b658008b1dfae
    Original-Signed-off-by: Julius Werner 
    Original-Reviewed-on: https://chromium-review.googlesource.com/219171
    Original-Reviewed-by: Aaron Durbin 
    Reviewed-on: http://review.coreboot.org/9235
    Reviewed-by: Aaron Durbin 
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel

See http://review.coreboot.org/9235 for details.

-gerrit