xentrace_format cannot use "0x016x" format as we expect.
It show only %(N) as "0x016x" format, not as "%(N+1)08x%(N)08x".
So I fixed tools/xentrace/formats by using "%(N+1)08x%(N)08x" format.
Also I added some TRC_PV entries.
Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>