Utils: Move QtcProcess constructor setup data to shared setup data

This includes replacing DeviceProcess terminal handling with base
member.

Change-Id: Id1541bfce33c71dddc71b4816ad0b174dce3879c
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/debugger/pdb/pdbengine.cpp

@@ -63,8 +63,10 @@ using namespace Utils;
 namespace Debugger {
 namespace Internal {
 
-PdbEngine::PdbEngine() : m_proc(ProcessMode::Writer)
+PdbEngine::PdbEngine()
 {
+    m_proc.setProcessMode(ProcessMode::Writer);
+
     setObjectName("PdbEngine");
     setDebuggerName("PDB");
 }