target-tricore: Add instructions of RLC opcode format

Add instructions of RLC opcode format.
Add helper psw_write/read.
Add microcode generator gen_mtcr/mfcr, which loads/stores a value to a core special function register, which are defined in csfr.def

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index 4893060..2eb33ea 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -36,3 +36,6 @@
 /* Address mode helper */
 DEF_HELPER_1(br_update, i32, i32)
 DEF_HELPER_2(circ_update, i32, i32, i32)
+/* PSW cache helper */
+DEF_HELPER_2(psw_write, void, env, i32)
+DEF_HELPER_1(psw_read, i32, env)