dmaengine: make QCOM_HIDMA depend on HAS_IOMEM

On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.

Here let QCOM_HIDMA depend on HAS_IOMEM so that it won't be built to
cause below compiling error if PCI is unset.

--------------------------------------------------------
ld: drivers/dma/qcom/hidma.o: in function `hidma_probe':
hidma.c:(.text+0x4b46): undefined reference to `devm_ioremap_resource'
ld: hidma.c:(.text+0x4b9e): undefined reference to `devm_ioremap_resource'
make[1]: *** [scripts/Makefile.vmlinux:35: vmlinux] Error 1
make: *** [Makefile:1264: vmlinux] Error 2

Signed-off-by: Baoquan He <[email protected]>
Reviewed-by: Niklas Schnelle <[email protected]>
Cc: Andy Gross <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Konrad Dybcio <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Dmitry Baryshkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

drivers/dma/qcom/Kconfig

@@ -45,6 +45,7 @@ config QCOM_HIDMA_MGMT
 
 config QCOM_HIDMA
 	tristate "Qualcomm Technologies HIDMA Channel support"
+	depends on HAS_IOMEM
 	select DMA_ENGINE
 	help
 	  Enable support for the Qualcomm Technologies HIDMA controller.