Update smc control block addr to match hw

Change-Id: If333c12ebd0741783ea878489eff87818192d6d2

platforms/smc.repl

diff --git a/platforms/smc.repl b/platforms/smc.repl
index 473e0a8..bcfce13 100644
--- a/platforms/smc.repl
+++ b/platforms/smc.repl
@@ -32,7 +32,7 @@
 // SMC Specific Peripherals start at 0x50000000
 
 // Control block for the SMC, lets us pause/restart the core at an arbitrary PC.
-smc_control: CPU.SmcRiscV32_ControlBlock @ sysbus 0x50020000
+smc_control: CPU.SmcRiscV32_ControlBlock @ sysbus 0x54020000
     cpu: cpu1
 
 // SMC_PLIC