Comment in Armada 370 functional specification is misleading.
PCI_EXP_DEVCTL_*RE bits are supported and configures receiving of error
interrupts.

Link: https://lore.kernel.org/r/20211125124605.25915-14-pali@kernel.org
Fixes: 1f08673e ("PCI: mvebu: Convert to PCI emulated bridge config space")
Signed-off-by: NPali Rohár <pali@kernel.org>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>