perf annotate: Use raw form for register indirect call instructions

   callq  *0x10(%rax)

was being rendered in simplified mode as:

   callq  *10

I.e. hexa, but without the 0x and omitting the register. In such cases
just use the raw form.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-m91tv004h2m1fkfgu6ovx3hb@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/annotate.c

@@ -56,6 +56,12 @@ static int call__parse(struct ins_operands *ops)
 	return ops->target.name == NULL ? -1 : 0;
 
 indirect_call:
+	tok = strchr(endptr, '(');
+	if (tok != NULL) {
+		ops->target.addr = 0;
+		return 0;
+	}
+
 	tok = strchr(endptr, '*');
 	if (tok == NULL)
 		return -1;
@@ -70,6 +76,9 @@ static int call__scnprintf(struct ins *ins, char *bf, size_t size,
 	if (ops->target.name)
 		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
 
+	if (ops->target.addr == 0)
+		return ins__raw_scnprintf(ins, bf, size, ops);
+
 	return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
 }