dev-arm: Do not mark the MpamMSC as abstract (#1030)

This prevents its instantiation


Change-Id: I775a64904a01cf36e4cc1e0cd45765f03325c5ca

Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>

src/dev/arm/Mpam.py

@@ -38,6 +38,5 @@ from m5.objects.PartitioningPolicies import PartitionManager
 
 class MpamMSC(PartitionManager):
     type = "MpamMSC"
-    abstract = True
     cxx_header = "dev/arm/mpam.hh"
     cxx_class = "gem5::mpam::MSC"