Update neopixel.js to fix detection of RPi CM4 with Bookworm (#1098)

My CM4 Module has in /proc/cpuinfo no " : BCM" text string, so the check for RPi fails.
Instead it has a Model  " : Raspberry Pi Compute Module 4 Rev 1.1" string. 
The Check was updated to use BCM or "Raspberry Pi" to check for Raspberry Pi Hardware.

Author: Flos

hardware/neopixel/neopixel.js

@@ -10,7 +10,7 @@ module.exports = function(RED) {
 
     try {
         var cpuinfo = fs.readFileSync("/proc/cpuinfo").toString();
-        if (cpuinfo.indexOf(": BCM") === -1) {
+        if (cpuinfo.indexOf(": BCM") === -1 && cpuinfo.indexOf(": Raspberry Pi") === -1)) {
             RED.log.warn("rpi-neopixels : "+RED._("node-red:rpi-gpio.errors.ignorenode"));
             allOK = false;
         }