This fixes memory overlap error:
[    0.000000] reserved@6300000 (0x0000000006300000--0x0000000007000000) overlaps with smem_region@6a00000 (0x0000000006a00000--0x0000000006c00000)

smem_region is the same as in downstream (qcom,smem) [1], therefore
split reserved memory into two sections on either side of smem_region.

Not adding labels as it's not expected to be used.

[1] https://android.googlesource.com/kernel/msm/+/refs/heads/android-msm-angler-3.10-marshmallow-mr1/arch/arm/boot/dts/qcom/msm8994.dtsi#948

Fixes: 380cd3a3 ("arm64: dts: msm8994-angler: fix the memory map")
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230131200414.24373-3-pvorel@suse.cz