arch: riscv: print symbol name of `mepc` if `CONFIG_SYMTAB` is enabled

The mepc register is the address of the instruction that was
interrupted, it will make debugging easier if we know the
name of the symbol, so print it if `CONFIG_SYMTAB` is enabled.

Signed-off-by: Yong Cong Sin <ycsin@meta.com>
1 file changed