Change Penryn to max

As stated in QEMU 6 

Can test currently with:

`-e CPU=max \`

```
[user@hostname ~]$ qemu-system-x86_64 -cpu help
x86 Penryn                (alias configured by machine type)                        
x86 Penryn-v1             Intel Core 2 Duo P9xxx (Penryn Class Core 2)              
...
x86 base                  base CPU model type with no features enabled              
x86 host                  KVM processor with all supported host features            
x86 max                   Enables all features supported by the accelerator in the current host
```

See https://github.com/sickcodes/Docker-OSX/issues/304

Dockerfile

@@ -219,7 +219,7 @@ RUN touch Launch.sh \
     && tee -a Launch.sh <<< '[[ "${RAM}" = half ]] && export RAM="$(("$(head -n1 /proc/meminfo | tr -dc "[:digit:]") / 2000000"))"' \
     && tee -a Launch.sh <<< 'sudo chown -R $(id -u):$(id -g) /dev/snd 2>/dev/null || true' \
     && tee -a Launch.sh <<< 'exec qemu-system-x86_64 -m ${RAM:-2}000 \' \
-    && tee -a Launch.sh <<< '-cpu ${CPU:-Penryn},${CPUID_FLAGS:-vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+pcid,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check,}${BOOT_ARGS} \' \
+    && tee -a Launch.sh <<< '-cpu ${CPU:-max},${CPUID_FLAGS:-vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+pcid,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check,}${BOOT_ARGS} \' \
     && tee -a Launch.sh <<< '-machine q35,${KVM-"accel=kvm:tcg"} \' \
     && tee -a Launch.sh <<< '-smp ${CPU_STRING:-${SMP:-4},cores=${CORES:-4}} \' \
     && tee -a Launch.sh <<< '-usb -device usb-kbd -device usb-tablet \' \
@@ -264,7 +264,7 @@ ENV BOOT_ARGS=
 ENV BOOTDISK=
 
 # edit the CPU that is being emulated
-ENV CPU=Penryn
+ENV CPU=max
 ENV CPUID_FLAGS='vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+pcid,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check,'
 
 ENV DISPLAY=:0.0