Fix the name of nwell and rdl generic resistors.

Convert `mrnw` to `sky130_fd_pr__res_generic_nw`.
Convert `mrrdl` to `sky130_fd_pr__res_generic_r1`.

Fixes https://github.com/google/skywater-pdk/issues/168

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
diff --git a/models/sky130_fd_pr__model__r+c.model.spice b/models/sky130_fd_pr__model__r+c.model.spice
index fa9ff0f..c042791 100644
--- a/models/sky130_fd_pr__model__r+c.model.spice
+++ b/models/sky130_fd_pr__model__r+c.model.spice
@@ -132,14 +132,14 @@
 .model sky130_fd_pr__res_generic_nd__hv r tc1r = {tc1rsn_h} tc2r = {tc2rsn_h} rsh = {rdn_hv} dw = {"-tol_nfom/2-nfom_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_pd__hv r tc1r = {tc1rsp_h} tc2r = {tc2rsp_h} rsh = {rdp_hv} dw = {"-tol_pfom/2-pfom_dw/2"} tref = 30.0
 *.model sky130_fd_pr__res_generic_po       r tc1r=tc1rsgpu   tc2r=tc2rsgpu   rsh=rp1   dw="-tol_poly/2-poly_dw/2" tref=30
-.model mrnw r tc1r = {tc1rsnw} tc2r = {tc2rsnw} rsh = {rnw} dw = {"-tol_nw/2"} tref = 30.0
+.model sky130_fd_pr__res_generic_nw r tc1r = {tc1rsnw} tc2r = {tc2rsnw} rsh = {rnw} dw = {"-tol_nw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_l1 r tc1r = {tc1rl1} tc2r = {tc2rl1} rsh = {rl1} dw = {"-tol_li/2-li_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_m1 r tc1r = {tc1rm1} tc2r = {tc2rm1} rsh = {rm1} dw = {"-tol_m1/2-m1_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_m2 r tc1r = {tc1rm2} tc2r = {tc2rm2} rsh = {rm2} dw = {"-tol_m2/2-m2_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_m3 r tc1r = {tc1rm3} tc2r = {tc2rm3} rsh = {rm3} dw = {"-tol_m3/2-m3_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_m4 r tc1r = {tc1rm4} tc2r = {tc2rm4} rsh = {rm4} dw = {"-tol_m4/2-m4_dw/2"} tref = 30.0
 .model sky130_fd_pr__res_generic_m5 r tc1r = {tc1rm5} tc2r = {tc2rm5} rsh = {rm5} dw = {"-tol_m5/2-m5_dw/2"} tref = 30.0
-.model mrrdl r tc1r = {tc1rrdl} tc2r = {tc2rrdl} rsh = {rrdl} dw = {"-tol_rdl/2-rdl_dw/2"} tref = 25.0
+.model sky130_fd_pr__res_generic_r1 r tc1r = {tc1rrdl} tc2r = {tc2rrdl} rsh = {rrdl} dw = {"-tol_rdl/2-rdl_dw/2"} tref = 25.0
 .model mrcn r tc1r = {tc1rcn} tc2r = {tc2rcn} res = {rcn} tref = 30.0
 .model mrcp r tc1r = {tc1rcp} tc2r = {tc2rcp} res = {rcp} tref = 30.0
 .model mrcp1 r tc1r = {tc1rcgp} tc2r = {tc2rcgp} res = {rcp1} tref = 30.0