pmu lower placement density (30%) to accomodate FOM violations in tapeout check

gds/user_project_wrapper.gds

diff --git a/gds/user_project_wrapper.gds b/gds/user_project_wrapper.gds
index 4c66f65..3a671c2 100644
--- a/gds/user_project_wrapper.gds
+++ b/gds/user_project_wrapper.gds
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verilog/gl/user_project_wrapper.v

diff --git a/verilog/gl/user_project_wrapper.v b/verilog/gl/user_project_wrapper.v
index fb4843d..abcc572 100644
--- a/verilog/gl/user_project_wrapper.v
+++ b/verilog/gl/user_project_wrapper.v
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