Add support for RISCV64_GENERIC in cmake

cmake/prebuild.cmake

@@ -1309,6 +1309,15 @@ endif ()
       "#define DTB_DEFAULT_ENTRIES 128\n"
       "#define DTB_SIZE 4096\n"
       "#define L2_ASSOCIATIVE 8\n")
+  elseif ("${TCORE}" STREQUAL "RISCV64_GENERIC")
+    file(APPEND ${TARGET_CONF_TEMP}
+        "#define L1_DATA_SIZE 32768\n"
+      "#define L1_DATA_LINESIZE 32\n"
+      "#define L2_SIZE 1048576\n"
+      "#define L2_LINESIZE 32 \n"
+      "#define DTB_DEFAULT_ENTRIES 128\n"
+      "#define DTB_SIZE 4096\n"
+      "#define L2_ASSOCIATIVE 4\n")
   endif()
   set(SBGEMM_UNROLL_M 8)
   set(SBGEMM_UNROLL_N 4)