drm: fix HDR static metadata type field numbering

raspberrypi inclusion
category: feature
bugzilla: 50432

--------------------------------

According to CTA-861 specification, HDR static metadata data block allows a
sink to indicate which HDR metadata types it supports by setting the SM_0 to
SM_7 bits. Currently, only Static Metadata Type 1 is supported and this is
indicated by setting the SM_0 bit to 1.

However, the connector->hdr_sink_metadata.hdmi_type1.metadata_type is always
0, because hdr_metadata_type() in drm_edid.c checks the wrong bit.

This patch corrects the HDMI_STATIC_METADATA_TYPE1 bit position.
Signed-off-by: NLaurentiu Palcu <laurentiu.palcu@nxp.com>
Signed-off-by: NFang Yafen <yafen@iscas.ac.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/hdmi.h

@@ -156,7 +156,7 @@ enum hdmi_content_type {
 };
 
 enum hdmi_metadata_type {
-	HDMI_STATIC_METADATA_TYPE1 = 1,
+	HDMI_STATIC_METADATA_TYPE1 = 0,
 };
 
 enum hdmi_eotf {