[Bluetooth] Code cleanup for the HCI UART driver
[Bluetooth] Code cleanup for the HCI UART driver

This patch cleans up the Bluetooth HCI UART driver a bit.

Signed-off-by: Pavel Machek <2375fa63e2908bb2df59f606483a3aa92321db7a@suse.cz>
Signed-off-by: Marcel Holtmann <44592b4eea36663c86b994bb0ea99d15309c1c7d@holtmann.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs