Updated "Generic X-Box pad" to conform to the README

The [Generic X-Box pad] section was misconfigured so I updated it
to conform to the README. R-button, L-button, Z-trigger, B-button,
and START are now properly mapped. I tested this config by playing
Ocarina Of Time and the controller layout works well.

data/InputAutoCfg.ini

@@ -1487,19 +1487,18 @@ DPad R = hat(0 Right)
 DPad L = hat(0 Left)
 DPad D = hat(0 Down)
 DPad U = hat(0 Up)
-Start = button(6)
-Z Trig = button(7)
-B Button = button(1)
+Start = button(7)
+Z Trig = axis(2+)
+B Button = button(2)
 A Button = button(0)
 C Button R = axis(3+)
-C Button L = axis(3-)
-C Button D = axis(4+)
+C Button L = axis(3-) button(3)
+C Button D = axis(4+) button(1)
 C Button U = axis(4-)
-R Trig = axis(5+)
-L Trig = axis(2+)
-Mempak switch = button(5)
-Rumblepak switch = button(2)
-X Axis = axis(0-,0+)
+R Trig = button(5) axis(5+)
+L Trig = button(4)
+Mempak switch = button(9)
+Rumblepak switch = button(10)X Axis = axis(0-,0+)
 Y Axis = axis(1-,1+)
 
 [OSX: USB GamePad]