power: qpnp-bms: change time interface from jiffies to monotonic boottime

Bms module uses jiffies time. However, jiffies time will not consider the sleep time.
If the power consumption is large in sleep state, such as voice call scenarios, it will
have two problems. First, the soc may decrease uniformly. Second, because the time is smaller
than real time, so the calculated current is larger and may cause the available
power is negative. Therefore, change time interface from jiffies to monotonic boottime.

BUG:24450753
Change-Id: I1c60e1de15f2330415bd6ae11243960578d1fbfa
Signed-off-by: libing <l00228880@notesmail.huawei.com>