hardware: Let the TAS5760M module use a more generic voltage rail name.

We use 19V, but PVDD has a very wide supported range.

modules/tas5760m-amp-module/tas5760m-amp-module.kicad_sch

     (stroke (width 0) (type solid) (color 0 0 0 0))
     (uuid 23148196-7d51-4ffc-be0e-f9285fce8948)
   )
-  (wire (pts (xy 218.44 55.88) (xy 220.98 55.88))
+  (wire (pts (xy 218.44 55.88) (xy 227.33 55.88))
     (stroke (width 0) (type solid) (color 0 0 0 0))
     (uuid 6680d3c7-bd94-41f5-b15c-05b45f67337c)
   )
     (stroke (width 0) (type solid) (color 0 0 0 0))
     (uuid 6f497c5b-4354-47f8-9ac3-d1e898f53843)
   )
-  (wire (pts (xy 232.41 106.68) (xy 234.95 106.68))
+  (wire (pts (xy 228.6 106.68) (xy 234.95 106.68))
     (stroke (width 0) (type solid) (color 0 0 0 0))
     (uuid e963abfb-8bb3-4b17-8a5d-f8460bcddb98)
   )
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid f91a9332-2c4f-4aad-982c-7164f9445e29)
   )
-
-  (hierarchical_label "19V" (shape input) (at 220.98 55.88 0)
-    (effects (font (size 1.27 1.27)) (justify left))
-    (uuid 7014ffa9-41dd-4a02-b608-ae6f909f626a)
+  (label "PVDD" (at 227.33 55.88 180)
+    (effects (font (size 1.27 1.27)) (justify right bottom))
+    (uuid 6d3aaca4-488f-4407-bc3b-47d43813121d)
   )
-  (hierarchical_label "19V" (shape input) (at 232.41 106.68 180)
-    (effects (font (size 1.27 1.27)) (justify right))
-    (uuid ba6a5e38-33ad-4aa0-964d-5c3649bc2465)
+  (label "PVDD" (at 228.6 106.68 0)
+    (effects (font (size 1.27 1.27)) (justify left bottom))
+    (uuid 66629c28-d6a8-4fa8-b874-c8e5dc6ee323)
   )
 
   (symbol (lib_id "power:+3V3") (at 35.56 106.68 0) (unit 1)