launch_heavy_1: Fix/revert led mapping

The `matrix_co` mapping in
bcd1736
is incorrect. LED index 53 and 54 appear nowhere, while `85` and `86`
appear twice.

This should match the mapping that was used before. Compared using the
generation script in
pop-os/keyboard-configurator#208.

Are we sure this is entirely correct? I haven't don't any testing with
hardware or comparison to schematics.

keyboards/system76/launch_heavy_1/launch_heavy_1.c

@@ -49,9 +49,9 @@ led_config_t g_led_config = { {
     { 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82},
     { 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55},
     { 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52},
-    { 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25},
-    { 12, 11, 10,  9,  8,  7,  6,  5,  4,  3,  2,  1,  0, 87},
-    { 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 86, 85},
+    { 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 83},
+    { 12, 11, 10,  9,  8,  7,  6,  5,  4,  3,  2,  1,  0, 54},
+    { 13, 14, 15, 16, 17, 25, 18, 19, 20, 21, 22, 23, 24, 53},
     { __, __, __,104,103,102, __, __, __, __, __, __,101, __},
     { __, __, __, 97, 98, 99, __, __, __, __, __, __,100, __},
     { __, __, __, 96, 95, 94, __, __, __, __, __, __, 93, __},