Release v1.2.7.1

Core
 - Release v1.2.7.1
 - conf: Use ino64_t to save and compare inode numbers
Control API
 - control: eld - fix the decoding for older hw
I/O API
 - output: include stdarg.h
PCM API
 - pcm: dmix - Add error handler for `fgets`
Use Case Manager API
 - ucm: list also hardware configs (hw:X) in uc_mgr_scan_master_configs() fcn
Configuration
 - conf: Use ino64_t to save and compare inode numbers

Signed-off-by: Jaroslav Kysela <perex@perex.cz>