AIA: Add isa=..._smaia_ssaia_... option

disasm/isa_parser.cc

@@ -386,6 +386,11 @@ isa_parser_t::isa_parser_t(const char* str, const char *priv)
       extension_table[EXT_SSDBLTRP] = true;
     } else if (ext_str == "smdbltrp") {
       extension_table[EXT_SMDBLTRP] = true;
+    } else if (ext_str == "smaia") {
+      extension_table[EXT_SMAIA] = true;
+      extension_table[EXT_SSAIA] = true;
+    } else if (ext_str == "ssaia") {
+      extension_table[EXT_SSAIA] = true;
     } else if (ext_str[0] == 'x') {
       extension_table['X'] = true;
       if (ext_str.size() == 1) {

riscv/isa_parser.h

@@ -90,6 +90,8 @@ typedef enum {
   EXT_SMMPM,
   EXT_SMNPM,
   EXT_SSNPM,
+  EXT_SMAIA,
+  EXT_SSAIA,
   NUM_ISA_EXTENSIONS
 } isa_extension_t;