ec/lenovo/h8: Make dock init in ramstage fully mainboard-specific

Discussed in CB:36093, in the past many lenovo boards need to declare
an empty h8_mainboard_init_dock() to satisfy h8.c.

Now the confusing H8_DOCK_EARLY_INIT might be retired, and if a
mainboard needs dock init (done with h8_mainboard_init_dock() in the
past) in ramstage, (discussed in CB:4294 where H8_DOCK_EARLY_INIT is
introduced) it can just do it in its own chip_ops.enable_dev function.

Tested on X200. Testing on other affected targets may be necessary.

Change-Id: I5737406d1f6cb6e91b2e2fa349a206a3dba988d1
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36385
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/ec/lenovo/h8/Kconfig

@@ -44,7 +44,4 @@ config H8_HAS_PRIMARY_FN_KEYS
 	bool
 	default n
 
-endif
-
-config H8_DOCK_EARLY_INIT
-	bool
+endif # EC_LENOVO_H8

src/ec/lenovo/h8/h8.c

@@ -353,10 +353,6 @@ static void h8_enable(struct device *dev)
 	h8_charge_priority(val);
 
 	h8_set_audio_mute(0);
-
-#if !CONFIG(H8_DOCK_EARLY_INIT)
-	h8_mainboard_init_dock();
-#endif
 }
 
 struct chip_operations ec_lenovo_h8_ops = {

src/ec/lenovo/h8/h8.h

@@ -36,8 +36,6 @@ int h8_ultrabay_device_present(void);
 u8 h8_build_id_and_function_spec_version(char *buf, u8 buf_len);
 void h8_usb_always_on(void);
 
-void h8_mainboard_init_dock (void);
-
 int h8_get_fn_key(void);
 int h8_get_sense_ready(void);