Blackfin arch: split apart dump_bfin_regs and merge/remove show_regs from process.c, which was largely duplicated

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

arch/blackfin/kernel/early_printk.c

@@ -205,7 +205,8 @@ asmlinkage void __init early_trap_c(struct pt_regs *fp, void *retaddr)
 	if (likely(early_console == NULL))
 		setup_early_printk(DEFAULT_EARLY_PORT);
 
-	dump_bfin_regs(fp, retaddr);
+	dump_bfin_mem((void *)fp->retx);
+	show_regs(fp);
 	dump_bfin_trace_buffer();
 
 	panic("Died early");