arch/riscv/trap_handler.c: Use new names for CSR

sbadaddr and mbadaddr are deprecated names. This fixes compilation with clang.

Change-Id: I5c8fa82b6131dec10f55e8ebcf36b34e30b57bad
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>

src/arch/riscv/trap_handler.c

@@ -150,7 +150,7 @@ void trap_handler(trapframe *tf)
 /* This function used to redirect trap to s-mode. */
 void redirect_trap(void)
 {
-	write_csr(sbadaddr, read_csr(mbadaddr));
+	write_csr(stval, read_csr(mtval));
 	write_csr(sepc, read_csr(mepc));
 	write_csr(scause, read_csr(mcause));
 	write_csr(mepc, read_csr(stvec));

src/arch/riscv/trap_util.S

@@ -80,7 +80,7 @@
   csrrw  t0,mscratch,x0
   csrr   s0,mstatus
   csrr   t1,mepc
-  csrr   t2,mbadaddr
+  csrr   t2,mtval
   csrr   t3,mcause
   STORE  t0,2*REGBYTES(x2)
   STORE  s0,32*REGBYTES(x2)