dev-arm: Add a PL111 to the VExpress_GEM5_Foundation

The device is part of the FVP Foundation platform:

https://static.docs.arm.com/100961/1190/armv8_a_fp_ug_100961_1190_00_en.pdf

Change-Id: I91226cb10a3be50c59e32288b3643c550e8b538d
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/39697
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/dev/arm/RealView.py

@@ -1365,6 +1365,8 @@ class VExpress_GEM5_Foundation(VExpress_GEM5_Base):
 
     sp810_fake = AmbaFake(pio_addr=0x1C020000, ignore_access=True)
 
+    clcd = Pl111(pio_addr=0x1c1f0000, interrupt=ArmSPI(num=46))
+
     gic = Gicv3(dist_addr=0x2f000000, redist_addr=0x2f100000,
                 maint_int=ArmPPI(num=25), gicv4=False,
                 its=NULL)
@@ -1382,6 +1384,7 @@ class VExpress_GEM5_Foundation(VExpress_GEM5_Base):
 
     def _off_chip_devices(self):
         return super(VExpress_GEM5_Foundation, self)._off_chip_devices() + [
+                self.clcd,
                 self.sp810_fake,
         ]