feat(fvp): capture timestamps in bl stages

When ENABLE_RUNTIME_INSTRUMENTATION flag is set timestamps are captured
and output to the fvp console at various boot stages using the PMF
library (which are based on aarch timers).

Timestamps are captured at entry and exit points for Bl1, Bl2
and, Bl3 respectively.

Change-Id: I7c0c502e5dbf73d711700b2fe0085ca3eb9346d2
Signed-off-by: Thaddeus Serna <Thaddeus.Gonzalez-Serna@arm.com>
6 files changed