2 new commits pushed to

<https://github.com/RTimothyEdwards/open_pdks/tree/master|master>

by RTimothyEdwards

<https://github.com/RTimothyEdwards/open_pdks/commit/12f00a00fc65241f4b3d0cfe524adaa9604d1203|12f00a00>

- Modified the xcircuit files to set PDK_ROOT as a local variable and

<https://github.com/RTimothyEdwards/open_pdks/commit/93090393c59d2a7b825cdc54ae999f304b2ff747|93090393>

- Corrected the Makefile target for nodeinfo.json which had typos RTimothyEdwards/open_pdks