arm64: dts: qcom: sc7180: Expand IMEM region

[ Upstream commit 965e28ca ]

We need more than what is currently described, expand the region to its
actual boundaries.

Fixes: ede638c4 ("arm64: dts: qcom: sc7180: Add IMEM and pil info regions")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250523-topic-ipa_mem_dts-v1-3-f7aa94fac1ab@oss.qualcomm.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>