lef should have unique name for each cell variation

[proppy]

Expected Behavior

all the variants of a given cell's .lef have unique MACRO names and can be concatenated by open_pdks in a single file.

Actual Behavior

variants have the same MACRO name, ex:

• https://github.com/google/globalfoundries-pdk-libs-gf180mcu_fd_io/blob/main/cells/asig_5p0/gf180mcu_fd_io__asig_5p0_3lm.lef#L15
• https://github.com/google/globalfoundries-pdk-libs-gf180mcu_fd_io/blob/main/cells/asig_5p0/gf180mcu_fd_io__asig_5p0_4lm.lef#L15

[proppy]

@RTimothyEdwards fyi

[RTimothyEdwards]

I would not consider this to be a problem.

[proppy]

@RTimothyEdwards OpenLane do seem to complain when including the lef merged by open_pdks.