cores/cpu: Add missing Gowin EMCU comment.

litex/soc/cores/cpu/__init__.py

@@ -92,6 +92,7 @@ from litex.soc.cores.cpu.zynq7000 import Zynq7000
 # EOS-S3
 from litex.soc.cores.cpu.eos_s3 import EOS_S3
 
+# Gowin EMCU
 from litex.soc.cores.cpu.gowin_emcu import GowinEMCU
 
 CPUS = {
@@ -130,5 +131,6 @@ CPUS = {
     # EOS-S3
     "eos-s3"      : EOS_S3,
 
+    # Gowin EMCU
     'gowin_emcu'  : GowinEMCU
 }