Moved a few reference designators

U2 was moved to remove ambiguity.  Q1 was moved to ensure it isn't cut
off by a hole.  U1 was moved to stay away from where MacroFab put their
secret manufacturing code.

pd-buddy-sink/pd-buddy-sink.kicad_pcb

@@ -3,7 +3,7 @@
   (general
     (links 138)
     (no_connects 0)
-    (area 32.224999 57.424999 111.575001 82.575001)
+    (area 81.424999 57.424999 111.575001 82.575001)
     (thickness 1.6)
     (drawings 30)
     (tracks 556)
@@ -348,7 +348,7 @@
     (tags "QFN 0.5")
     (path /588FD270/588FD426)
     (attr smd)
-    (fp_text reference U2 (at -1.5 4.4) (layer F.SilkS)
+    (fp_text reference U2 (at 4.5 1 90) (layer F.SilkS)
       (effects (font (size 0.65 0.65) (thickness 0.12)))
     )
     (fp_text value STM32F072C8Ux (at 0 4.75) (layer F.Fab)
@@ -599,7 +599,7 @@
     (tags SOT-23)
     (path /588FA3A4/588FA577)
     (attr smd)
-    (fp_text reference Q1 (at 1.25 -1.5 180) (layer F.SilkS)
+    (fp_text reference Q1 (at 0 -2.1 270) (layer F.SilkS)
       (effects (font (size 0.65 0.65) (thickness 0.12)))
     )
     (fp_text value MMBT2222ALT1G (at 0 2.5 90) (layer F.Fab)
@@ -1826,7 +1826,7 @@
     (tags SOT-89-3)
     (path /588F9A21/592B31D5)
     (attr smd)
-    (fp_text reference U1 (at 3.75 0 180) (layer F.SilkS)
+    (fp_text reference U1 (at -2 2.75 270) (layer F.SilkS)
       (effects (font (size 0.65 0.65) (thickness 0.12)))
     )
     (fp_text value AP2204R-3.3TRG1 (at 0.45 3.25 90) (layer F.Fab)