dts: Set default NVME HMB size to 0 on RPi 4 & 5

commit ec6ca8fd21ab010304b6a4b217f0e479f0533ed2 from
https://github.com/raspberrypi/linux.git rpi-6.12.y

Link: raspberrypi/linux#6504
      raspberrypi/linux#6844
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>

Author: altserg

arch/arm/boot/dts/broadcom/bcm2711-rpi-ds.dtsi

@@ -3,7 +3,7 @@
 
 / {
 	chosen {
-		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 cgroup_disable=memory numa_policy=interleave";
+		bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_headphones=0 cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=0";
 	};
 
 	__overrides__ {

arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi

@@ -97,7 +97,7 @@ pio: &rp1_pio {
 
 / {
 	chosen: chosen {
-		bootargs = "reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave";
+		bootargs = "reboot=w coherent_pool=1M 8250.nr_uarts=1 pci=pcie_bus_safe cgroup_disable=memory numa_policy=interleave nvme.max_host_mem_size_mb=0";
 		stdout-path = "serial10:115200n8";
 	};