fix(tech/ihp): add new standard cells

The ihp-sg13g2 PDK has recently added 6 new standard cells variants in IHP-GmbH/IHP-Open-PDK#553.

tech/ihp-sg13g2/categories.json

@@ -28,6 +28,7 @@
       "buf" : 9,
       "decap" : 10,
       "dfrbp" : 5,
+      "dfrbpq": 5,
       "dlhq" : 7,
       "dlhr" : 7,
       "dlhrq" : 7,
@@ -57,6 +58,8 @@
       "or3" : 1,
       "or4" : 1,
       "sdfbbp" : 5,
+      "sdfrbp" : 5,
+      "sdfrbpq" : 5,
       "sighold" : 14,
       "slgcp" : 4,
       "tiehi" : 14,

tech/ihp-sg13g2/cells.json

@@ -54,6 +54,11 @@
       "doc_name": "DFFRRx",
       "doc_ref" : 11
    },
+   "dfrbpq": {
+      "description" : "Delay flop, inverted reset, single output.",
+      "doc_name": "DFRBPQx",
+      "doc_ref" : 0
+   },
    "dlhq" : {
       "description" : "Delay latch, non-inverted enable, single output.",
       "doc_name": "DLHQ",
@@ -199,6 +204,16 @@
       "doc_name": "SDFRRS",
       "doc_ref" : 43
    },
+   "sdfrbp": {
+      "description" : "Scan delay flop, inverted reset, non-inverted clock, complementary outputs.",
+      "doc_name": "SDFRBPx",
+      "doc_ref" : 0
+   },
+   "sdfrbpq": {
+      "description" : "Scan delay flop, inverted reset, non-inverted clock, single output.",
+      "doc_name": "SDFRBPQx",
+      "doc_ref" : 0
+   },
    "sighold" : {
       "description" : "Cross-coupled inverters.",
       "doc_name": "KEEPSTATE",