kernel: reserved_mem: add missing IORESOURCE_MEM flag on resources
This patch fixes a bug in a patch we backported.
This patch was cherry picked from upstream Linux because it references a
patch we backported in the fixes tag.
Fixes: 9d3009f426d5 ("airoha: major backport of Airoha Ethernet driver feature support")
Link: https://github.com/openwrt/openwrt/pull/21366
(cherry picked from commit
b3cc77eeadd4ddbff1b9e7605202c03499059990)
Link: https://github.com/openwrt/openwrt/pull/21390
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>