MDEV-7512 GIS: ST_ synonyms for functions are not consistent.

Checked for missing synonims, added those found.

sql/item_create.cc

@@ -5992,6 +5992,18 @@ static Native_func_registry func_array[] =
   { { C_STRING_WITH_LEN("ST_LINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
   { { C_STRING_WITH_LEN("ST_LINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
   { { C_STRING_WITH_LEN("ST_LINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MLINEFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MLINEFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MPOLYFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MPOLYFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MULTILINESTRINGFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MULTILINESTRINGFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MULTIPOINTFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MULTIPOINTFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
+  { { C_STRING_WITH_LEN("ST_MULTIPOLYGONFROMTEXT") }, GEOM_BUILDER(Create_func_geometry_from_text)},
+  { { C_STRING_WITH_LEN("ST_MULTIPOLYGONFROMWKB") }, GEOM_BUILDER(Create_func_geometry_from_wkb)},
   { { C_STRING_WITH_LEN("ST_NUMGEOMETRIES") }, GEOM_BUILDER(Create_func_numgeometries)},
   { { C_STRING_WITH_LEN("ST_NUMINTERIORRINGS") }, GEOM_BUILDER(Create_func_numinteriorring)},
   { { C_STRING_WITH_LEN("ST_NUMPOINTS") }, GEOM_BUILDER(Create_func_numpoints)},