Zicfilp: Add Zicfilp extension flag

disasm/isa_parser.cc

@@ -306,6 +306,8 @@ isa_parser_t::isa_parser_t(const char* str, const char *priv)
       extension_table[EXT_ZALASR] = true;
     } else if (ext_str == "ssqosid") {
       extension_table[EXT_SSQOSID] = true;
+    } else if (ext_str == "zicfilp") {
+      extension_table[EXT_ZICFILP] = true;
     } else if (ext_str[0] == 'x') {
       extension_table['X'] = true;
       if (ext_str.size() == 1) {

riscv/isa_parser.h

@@ -87,6 +87,7 @@ typedef enum {
   EXT_ZCMOP,
   EXT_ZALASR,
   EXT_SSQOSID,
+  EXT_ZICFILP,
   NUM_ISA_EXTENSIONS
 } isa_extension_t;