[PATCH] bus: qcom-ebi2: depend on HAS_IOMEM

After being asked to not depend on ARCH_QCOM* or similar,
unsurprisingly compilation fails on UM as it has no I/O
memory:

drivers/built-in.o: In function `qcom_ebi2_probe':

quoted

drivers/bus/qcom-ebi2.c:333: undefined reference to

   `devm_ioremap_resource'

Fix this by letting the Kconfig atleast depend on HAS_IOMEM.

Reported-by: kbuild test robot <redacted>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gross <redacted>
Cc: linux-arm-msm at vger.kernel.org
Signed-off-by: Linus Walleij <redacted>
---
ARM SoC maintainers: please apply this directly on the offending
branch, or line it up for v4.9 fixes.
---
 drivers/bus/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index 5a2d47c71525..7010dcac9328 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig

@@ -110,6 +110,7 @@ config OMAP_OCP2SCP
 
 config QCOM_EBI2
 	bool "Qualcomm External Bus Interface 2 (EBI2)"
+	depends on HAS_IOMEM
 	help
 	  Say y here to enable support for the Qualcomm External Bus
 	  Interface 2, which can be used to connect things like NAND Flash,

-- 
2.7.4