Tree-wide replacement was done by commit 2ef7d5f3 ("ARM, ARM64:
dts: drop "arm,amba-bus" in favor of "simple-bus"), then the 2nd
round by commit 15b7cc78 ("arm64: dts: drop "arm,amba-bus" in
favor of "simple-bus" part 2").

Here, some new users have appeared for Linux v4.10-rc1.  Eliminate
them now.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>