swerv: ifu_iccm_mem doesn't work in Verilator

[RRozak]

I created the test: #537
It gives warnings:

%Warning-SELRANGE: swerv/design/ifu/ifu_iccm_mem.sv:132:62: Extracting 6084 bits from only 78 bit number
%Warning-SELRANGE: swerv/design/ifu/ifu_iccm_mem.sv:132:119: Extracting 6084 bits from only 78 bit number

%Warning-WIDTH: swerv/design/ifu/ifu_iccm_mem.sv:131:33: Operator COND expects 12168 bits on the Conditional True, but Conditional True's REPLICATE generates 156 bits.
%Warning-WIDTH: swerv/design/ifu/ifu_iccm_mem.sv:132:11: Operator ASSIGNW expects 156 bits on the Assign RHS, but Assign RHS's COND generates 12168 bits.

%Warning-SELRANGE: swerv/design/ifu/ifu_iccm_mem.sv:132:62: Selection index out of range: 80:2 outside 4:0
%Warning-SELRANGE: swerv/design/ifu/ifu_iccm_mem.sv:132:119: Selection index out of range: 80:2 outside 4:0

[RRozak]

#539 reproduces all 3 kinds of these warnings.

[RRozak]

It is blocked by chipsalliance/Surelog#2032