phy: add ECP5 imports

litedram/phy/__init__.py

@@ -1,8 +1,11 @@
 from litedram.phy.gensdrphy import GENSDRPHY
+
 from litedram.phy.s6ddrphy import S6HalfRateDDRPHY, S6QuarterRateDDRPHY
 from litedram.phy.s7ddrphy import V7DDRPHY, K7DDRPHY, A7DDRPHY
 from litedram.phy.usddrphy import USDDRPHY
 
+from litedram.phy.ecp5ddrphy import ECP5DDRPHY, ECP5DDRPHYInit
+
 # backward compatibility (remove when no longer needed)
 from litedram.phy import s7ddrphy as a7ddrphy
 from litedram.phy import s7ddrphy as k7ddrphy