mem: Add byteEnable copy to Request copy constructor

Change-Id: Ie97543e62524bb244ae65eef096411af4605c175
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/23283
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
Tested-by: kokoro <noreply+kokoro@google.com>

src/mem/request.hh

@@ -478,6 +478,7 @@ class Request
 
     Request(const Request& other)
         : _paddr(other._paddr), _size(other._size),
+          _byteEnable(other._byteEnable),
           _masterId(other._masterId),
           _flags(other._flags),
           _memSpaceConfigFlags(other._memSpaceConfigFlags),