systemc: Eliminate ClockTick duplicated name warning

In systemc, a module name is consist of hierarchy names with dot
separated. The basename is the last part of the module name. Because
lack of hierarchy information, it's a chance that the basename is
duplicated. Although, ClockTick is using sc_gen_unique_name to solve
this, the warning from sc_gen_unique_name is annoying. To solve this
completely, we should use the full module name to construct the name of
ClockTick.

Change-Id: Ie664fe4757a05f72860be49c3a9d1172f824eb2e
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/44425
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45821

src/systemc/channel/sc_clock.cc

@@ -54,7 +54,7 @@ class ClockTick : public ScEvent
     ClockTick(::sc_core::sc_clock *clock, bool to,
             ::sc_core::sc_time _period) :
         ScEvent([this]() { tick(); }),
-        _period(_period), name(clock->basename()), p(nullptr),
+        _period(_period), name(clock->name()), p(nullptr),
         funcWrapper(clock, to ? &::sc_core::sc_clock::tickUp :
                                 &::sc_core::sc_clock::tickDown)
     {