hardware: Changed rotary encoder pins, lots of layout changes.

hackamp/hardware/processor.kicad_sch

   (hierarchical_label "AMP_I2S_SDI" (shape input) (at 100.33 195.58 180)
     (effects (font (size 1.27 1.27)) (justify right))
   )
-  (hierarchical_label "ENC_A" (shape input) (at 100.33 198.12 180)
+  (hierarchical_label "ENC_SW" (shape input) (at 100.33 198.12 180)
     (effects (font (size 1.27 1.27)) (justify right))
   )
-  (hierarchical_label "ENC_B" (shape input) (at 100.33 200.66 180)
+  (hierarchical_label "ENC_A" (shape input) (at 100.33 200.66 180)
     (effects (font (size 1.27 1.27)) (justify right))
   )
-  (hierarchical_label "ENC_SW" (shape input) (at 100.33 203.2 180)
+  (hierarchical_label "ENC_B" (shape input) (at 100.33 203.2 180)
     (effects (font (size 1.27 1.27)) (justify right))
   )
   (hierarchical_label "VOL2" (shape output) (at 166.37 50.8 0)