coresight: fix nr_addr_cmp check in etmv4 driver

nr_addr_cmp variable is incorrectly compared with "true" in
an IF conditin and we end up not setting SSSTATUS bit of
View Instruction control register when nr_addr_cmp != 1. ARM
ETMv4 spec recommends setting SSSTATUS bit for ETM tracing.
Fix this in driver.

Change-Id: Ib6ded122d754bbb0c01e273de59ad93afd2e20f5
Signed-off-by: Sarangdhar Joshi <spjoshi@codeaurora.org>