soc: jtagv8: Correct the sequence of restoring the etm registers

TRCPROCSELR is the second register to restore instead of the first
one. Correct the sequence to make the restore function work.

Change-Id: Ic2b3bf936a4754d9eeed3318f4ff708b298ad4d5
Signed-off-by: Mao Jinlong <jinlmao@codeaurora.org>