Marvell protocol support

configname: CONFIG_BT_HCIUART_MRVL

Linux Kernel Configuration
└─>Networking support
└─>Bluetooth subsystem support
└─>Bluetooth device drivers
└─>Marvell protocol support
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Marvell is serial protocol for communication between Bluetooth
device and host. This protocol is required for most Marvell Bluetooth
devices with UART interface.

Say Y here to compile support for HCI MRVL protocol.