sim: move register headers into sim/ namespace [PR sim/29869]

These headers define the register numbers for each port to implement
the sim_fetch_register & sim_store_register interfaces.  While gdb
uses these, the APIs are part of the sim, not gdb.  Move the headers
out of the gdb/ include namespace and into sim/ instead.

include/sim/sim-rl78.h

@@ -0,0 +1,76 @@
+/* sim-rx.h --- interface between rl78 simulator and GDB.
+
+   Copyright (C) 2011-2022 Free Software Foundation, Inc.
+
+   Contributed by Red Hat.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#if !defined (SIM_RL78_H)
+#define SIM_RL78_H
+
+enum sim_rl78_regnum
+{
+  sim_rl78_bank0_r0_regnum,
+  sim_rl78_bank0_r1_regnum,
+  sim_rl78_bank0_r2_regnum,
+  sim_rl78_bank0_r3_regnum,
+  sim_rl78_bank0_r4_regnum,
+  sim_rl78_bank0_r5_regnum,
+  sim_rl78_bank0_r6_regnum,
+  sim_rl78_bank0_r7_regnum,
+
+  sim_rl78_bank1_r0_regnum,
+  sim_rl78_bank1_r1_regnum,
+  sim_rl78_bank1_r2_regnum,
+  sim_rl78_bank1_r3_regnum,
+  sim_rl78_bank1_r4_regnum,
+  sim_rl78_bank1_r5_regnum,
+  sim_rl78_bank1_r6_regnum,
+  sim_rl78_bank1_r7_regnum,
+
+  sim_rl78_bank2_r0_regnum,
+  sim_rl78_bank2_r1_regnum,
+  sim_rl78_bank2_r2_regnum,
+  sim_rl78_bank2_r3_regnum,
+  sim_rl78_bank2_r4_regnum,
+  sim_rl78_bank2_r5_regnum,
+  sim_rl78_bank2_r6_regnum,
+  sim_rl78_bank2_r7_regnum,
+
+  sim_rl78_bank3_r0_regnum,
+  sim_rl78_bank3_r1_regnum,
+  sim_rl78_bank3_r2_regnum,
+  sim_rl78_bank3_r3_regnum,
+  sim_rl78_bank3_r4_regnum,
+  sim_rl78_bank3_r5_regnum,
+  sim_rl78_bank3_r6_regnum,
+  sim_rl78_bank3_r7_regnum,
+
+  sim_rl78_psw_regnum,
+  sim_rl78_es_regnum,
+  sim_rl78_cs_regnum,
+  sim_rl78_pc_regnum,
+
+  sim_rl78_spl_regnum,
+  sim_rl78_sph_regnum,
+  sim_rl78_pmc_regnum,
+  sim_rl78_mem_regnum,
+
+  sim_rl78_num_regs
+};
+
+#endif /* SIM_RL78_H */