[v1.06][RISCV] Add support for SpacemiT K1-X SoC (#286)

src/riscv/socs.h

@@ -13,6 +13,8 @@ enum {
   SOC_ALLWINNER_D1H,
   // SIPEED
   SOC_SIPEED_LICHEEPI4A,
+  // SPACEMIT
+  SOC_SPACEMIT_K1X,
   // UNKNOWN
   SOC_MODEL_UNKNOWN
 };
@@ -22,6 +24,7 @@ inline static VENDOR get_soc_vendor_from_soc(SOC soc) {
   if(soc >= SOC_STARFIVE_VF2 && soc <= SOC_STARFIVE_VF2) return SOC_VENDOR_STARFIVE;
   if(soc >= SOC_ALLWINNER_D1H && soc <= SOC_ALLWINNER_D1H) return SOC_VENDOR_ALLWINNER;
   if(soc >= SOC_SIPEED_LICHEEPI4A && soc <= SOC_SIPEED_LICHEEPI4A) return SOC_VENDOR_SIPEED;
+  if(soc >= SOC_SPACEMIT_K1X && soc <= SOC_SPACEMIT_K1X) return SOC_VENDOR_SPACEMIT;
   return SOC_VENDOR_UNKNOWN;
 }