[U-Boot] [PATCH v3 19/31] kconfig: Introduce HAVE_ARCH_IOMAP

[sjg at google.com]

Introduce a new Kconfig option for architecture codes to control
whether it provides io{read,write}{8,16,32} I/O accessor functions.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---

Changes in v3: None
Changes in v2: None

 include/linux/io.h | 4 ++++
 lib/Kconfig        | 6 ++++++
 2 files changed, 10 insertions(+)

Applied to u-boot-dm/next, thanks!