COMP: Fix improper included header in vcl_memory_tr1.h

TR1 is a special case in vcl and does not exactly fit the original vcl
header generation framework.  Make a small change to add a special case
for TR1 in which the "_tr1" suffix is stripped when generating the
include path.

Change-Id: I02a39658f5c0d28ad701052ba8444dfc1a9d997b
Merge topic 'vcl_memory'

790d46b COMP: Fix improper included header in vcl_memory_tr1.h