coresight: add lpae support for coresight tmc driver

Modify the CoreSight TMC driver for LPAE so that it can support
ETR physical addresses greater than 32 bits when LPAE is enabled.

Change-Id: I6db2c98c4db70262ab45f7ff11fe2a6846259f8a
Signed-off-by: Pushkar Joshi <pushkarj@codeaurora.org>
Signed-off-by: Chester Kener <Cl3Kener@gmail.com>

Conflicts:
	drivers/coresight/coresight-tmc.c