UPSTREAM: bug.h: sync BUILD_BUG stuff with Linux 4.13

As commit 84b8bf6d5d2a ("bug.h: move BUILD_BUG_* defines to
include/linux/bug.h") noted, include/linux/bug.h was locally
modified for U-Boot bec

UPSTREAM: bug.h: sync BUILD_BUG stuff with Linux 4.13

As commit 84b8bf6d5d2a ("bug.h: move BUILD_BUG_* defines to
include/linux/bug.h") noted, include/linux/bug.h was locally
modified for U-Boot because the name conflict of error() caused
build errors at that time.

Now error() is gone, so we can fully sync BUILD_BUG* with Linux.
These macros are just compile-time utilities. Nothing depends on
platform code, so it should make sense to simply copy Linux's ones.

Please note Linux split BUILD_BUG stuff out into <linux/build_bug.h>
by commit bc6245e5efd7. Let's follow it.

Change-Id: Iea5d4f8a69203f9b7c6cd12bdda5eb5b3f691830
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
(cherry picked from commit 059a48096c883e98bc1a4a561abc0069f44cbfea)

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