of: reserved_mem: Add missing IORESOURCE_MEM flag on resources

Commit f4fcfdd ('of: reserved_mem: Add functions to parse
"memory-region"') failed to set IORESOURCE_MEM flag on the resources.
The result is functions such as devm_ioremap_resource_wc() will fail.
Add the missing flag.

Fixes: f4fcfdd ('of: reserved_mem: Add functions to parse "memory-region"')
Reported-by: Iuliana Prodan <[email protected]>
Reported-by: Daniel Baluta <[email protected]>
Tested-by: Iuliana Prodan <[email protected]>
Reviewed-by: Iuliana Prodan <[email protected]>
Reviewed-by: Saravana Kannan <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Rob Herring (Arm) <[email protected]>

Author: robherring

drivers/of/of_reserved_mem.c

@@ -771,6 +771,7 @@ int of_reserved_mem_region_to_resource(const struct device_node *np,
 		return -EINVAL;
 
 	resource_set_range(res, rmem->base, rmem->size);
+	res->flags = IORESOURCE_MEM;
 	res->name = rmem->name;
 	return 0;
 }