bcm47765: PPS driver support

- Add /sys/devices/platform/bbd_pps/pps_assert
- Catch the GPIO interrupt from chipset and tag the boot time

Bug: 258364350
Test: b/258364350#comment63 function verification.
Test: b/258364350#comment63 time requirement verification.
Change-Id: Icfd44dee86e0e78637b21178388ca81ae179a11c
Signed-off-by: Cheng Chang <chengcha@google.com>
5 files changed