drm/i915/vbt: flip bta_enabled to bta_disable

The meaning is disable, so flip the member name.

Reviewed-by: Suraj Kandpal <[e-mail]>
Link: https://lore.kernel.org/r/180[e-mail]
Signed-off-by: Jani Nikula <[e-mail]>

drivers/gpu/drm/i915/display/intel_dsi_vbt.c

···
 	intel_dsi->init_count = mipi_config->master_init_timer;
 	intel_dsi->bw_timer = mipi_config->dbi_bw_timer;
 	intel_dsi->video_frmt_cfg_bits =
-		mipi_config->bta_enabled ? DISABLE_VIDEO_BTA : 0;
+		mipi_config->bta_disable ? DISABLE_VIDEO_BTA : 0;
 	intel_dsi->bgr_enabled = mipi_config->rgb_flip;
 
 	/* Starting point, adjusted depending on dual link and burst mode */

drivers/gpu/drm/i915/display/intel_dsi_vbt_defs.h

···
 #define ENABLE_ROTATION_180	0x2
 #define ENABLE_ROTATION_270	0x3
 		u32 rotation:2;
-		u32 bta_enabled:1;
+		u32 bta_disable:1;
 		u32 rsvd2:15;
 	} __packed;