### System details

MacBook Pro (16-inch 2019) T2

### What's wrong?

With the transition of arch's Watanare-t2 kernel to t2bce the KERNEL_CMDLINE defaults need to be updated (see https://kait2en.github.io/reference/installed-files Kernel Args section)

`KERNEL_CMDLINE[default]+=" intel_iommu=on iommu=pt pm_async=off mem_sleep_default=deep "`

This will fix the known suspend issues, enable faster suspend and resume times.

Also, tiny-dfr is not behaving properly with t2bce and the standard touchbar firmware works perfectly instead with sleep and resume, so this extra dependency can be removed.

Last but not least we need an additional Fan2 entry for MacBooks with two fans to avoid t2fanrd service crashing repeatedly.

Here's the suggested fixed file 

```
# Detect T2 MacBook models using PCI IDs
# Vendor: 106b (Apple), Device IDs: 1801 or 1802 (T2 Security Chip)
if lspci -nn | grep -q "106b:180[12]"; then
  echo "Detected MacBook with T2 chip. Installing support items..."

  omarchy-pkg-add \
    linux-t2 \
    linux-t2-headers \
    apple-t2-audio-config \
    apple-bcm-firmware \
    t2fanrd

  # Enable T2 services
  # Probably won't need that anymore
  systemctl enable t2fanrd.service

  mkdir -p /etc/modules-load.d
  {
    echo "t2bce_vhci"
    echo "hci_bcm4377"
  } > /etc/modules-load.d/t2.conf

  # linux-t2 7.1.4 replaced the apple-bce driver with t2bce; t2bce_vhci is the
  # virtual USB host controller the internal keyboard hangs off, and mkinitcpio
  # pulls t2bce_core/t2bce_dma in via module dependencies.
  mkdir -p /etc/mkinitcpio.conf.d
  echo "MODULES+=(t2bce_vhci usbhid hid_apple hid_generic xhci_pci xhci_hcd)" > \
    /etc/mkinitcpio.conf.d/apple-t2.conf

  mkdir -p /etc/modprobe.d
  cat > /etc/modprobe.d/brcmfmac.conf <<'EOF'
# Fix for T2 MacBook WiFi connectivity issues
options brcmfmac feature_disable=0x82000
EOF

  mkdir -p /etc/limine-entry-tool.d
  cat > /etc/limine-entry-tool.d/t2-mac.conf <<'EOF'
# Generated by Omarchy installer for T2 Mac support
# With the new t2bce these are the needed defaults for suspend. See https://kait2en.github.io/reference/installed-files/
KERNEL_CMDLINE[default]+=" intel_iommu=on iommu=pt pm_async=off mem_sleep_default=deep "
EOF

  # Added Fan2 to workaround a crashloop
  cat > /etc/t2fand.conf <<'EOF'
[Fan1]
low_temp=55
high_temp=75
speed_curve=exponential
always_full_speed=false
[Fan2]
low_temp=55
high_temp=75
speed_curve=exponential
always_full_speed=false
EOF
fi
```