Add defaults for PA control

mopidy_raspberry_gpio/ext.conf

@@ -1,30 +1,30 @@
 [raspberry-gpio]
 enabled = true
 bcm0 = 
-bcm1 =
-bcm2 =
-bcm3 =
-bcm4 = play_pause,active_low,30
-bcm5 = volume_up,active_low,30
-bcm6 = volume_down,active_low,30
-bcm7 =
-bcm8 =
-bcm9 =
-bcm10 =
-bcm11 =
-bcm12 =
-bcm13 =
-bcm14 =
-bcm15 =
-bcm16 =
-bcm17 =
-bcm18 =
-bcm19 =
-bcm20 =
-bcm21 =
-bcm22 =
-bcm23 =
-bcm24 =
-bcm25 =
-bcm26 =
-bcm27 =
+bcm1 = 
+bcm2 = 
+bcm3 = 
+bcm4 = 
+bcm5 = play_pause,active_low,150
+bcm6 = volume_down,active_low,150
+bcm7 = 
+bcm8 = 
+bcm9 = 
+bcm10 = 
+bcm11 = 
+bcm12 = 
+bcm13 = 
+bcm14 = 
+bcm15 = 
+bcm16 = next,active_low,150
+bcm17 = 
+bcm18 = 
+bcm19 = 
+bcm20 = volume_up,active_low,150
+bcm21 = 
+bcm22 = 
+bcm23 = 
+bcm24 = 
+bcm25 = 
+bcm26 = 
+bcm27 =