Bluetooth: btintel_pcie: Load IOSF debug regs by controller variant

Load the IOSF DBGC base address based on the controller hardware
variant when reading DRAM buffers during a trace dump. Scorpius
Peak family controllers (SCP/SCP2/SCP2F) use a different DBGC base
address (0xf0d5d500) than Blazar family controllers (BZRI/BZRIW,
0xf3800300).

Fixes: 07e6bddb54b4 ("Bluetooth: btintel_pcie: Add support for device coredump")
Signed-off-by: Sai Teja Aluvala <aluvala.sai.teja@intel.com>
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>