media: cec: replace pin->cur_value by adap->cec_pin_is_high

The current CEC pin value (0 or 1) was part of the cec_pin struct,
but that assumes that CEC pin monitoring can only be used with
a driver that uses the low-level CEC pin framework.

But hardware that has both a high-level API and can monitor the
CEC pin at low-level at the same time does not need to depend on
the cec pin framework.

To support such devices remove the cur_value field from struct cec_pin
and add a cec_pin_is_high field to cec_adapter. This also makes it
possible to drop the '#ifdef CONFIG_CEC_PIN' in cec-api.c.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/include/media/cec.h b/include/media/cec.h
index 60b26fc..df6b3bd 100644
--- a/include/media/cec.h
+++ b/include/media/cec.h
@@ -180,6 +180,7 @@
 	bool needs_hpd;
 	bool is_configuring;
 	bool is_configured;
+	bool cec_pin_is_high;
 	u32 monitor_all_cnt;
 	u32 monitor_pin_cnt;
 	u32 follower_cnt;