Separate coreboot related functions to coreboot_table.c to provide common methods for other firmware drivers. BUG=chrome-os-partner:39945 TEST=`emerge-oak chromeos-kernel-3_18` Signed-off-by: Wei-Ning Huang <wnhuang@google.com> Reviewed-on: https://chromium-review.googlesource.com/285380 Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Commit-Queue: Wei-Ning Huang <wnhuang@chromium.org> Tested-by: Wei-Ning Huang <wnhuang@chromium.org> (cherry picked from commit cc27c869c48c80ec7d89629f6cf112ef89818c78) Change-Id: Ie71f246d958c77b0721918167933de026d161bcb Reviewed-on: https://chromium-review.googlesource.com/294777 Reviewed-by: Yuji Sasaki <sasakiy@google.com> Reviewed-by: Wei-Ning Huang <wnhuang@chromium.org> Commit-Queue: Yuji Sasaki <sasakiy@google.com> Tested-by: Yuji Sasaki <sasakiy@google.com>