Make tpidr a generic thread pointer register on aarch

Author: Jlalond

lldb/source/Plugins/Process/Utility/RegisterInfoPOSIX_arm64.cpp

@@ -79,7 +79,8 @@ static lldb_private::RegisterInfo g_register_infos_mte[] = {
     DEFINE_EXTENSION_REG(mte_ctrl)};
 
 static lldb_private::RegisterInfo g_register_infos_tls[] = {
-    DEFINE_EXTENSION_REG(tpidr),
+    {"tpidr", nullptr, 8, 0, lldb::eEncodingUint, lldb::eFormatHex,
+     {LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_REGNUM_GENERIC_TP}, nullptr, nullptr, nullptr},
     // Only present when SME is present
     DEFINE_EXTENSION_REG(tpidr2)};