Hal layer for gnss replay

Test: Added following kernel cmdline and tested on local CF
gnss_cmdline.serdev=serial8250/serial0/serial0-0
gnss_cmdline.type=0
serdev_ttyport.pdev_tty_port=ttyS1

Change-Id: I3766c31672aa91341403105759b2fd997e7f8879
5 files changed