arm64: dts: qcom: eliza: Fix reserved memory addresses & sizes

arm64: dts: qcom: eliza: Fix reserved memory addresses & sizes

Update cpusys_vm_mem from 256KiB to 4MiB, cpucp_mem from 2MiB to 1MiB
and fix cpucp_scandump_mem node name to match actual reg address.

This matches the downstream memmap and kera-reserved-memory.dtsi.

Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260412-eliza-reserved-memory-fix-v1-1-05cb3e33a9fe@pm.me
Signed-off-by: Bjorn Andersson <andersson@kernel.org>