drm/edid: add DRM_EDID_IDENT_INIT() to initialize struct drm_edid_ident

Add a convenience helper for initializing struct drm_edid_ident.

Cc: Tiago Martins Araújo <[e-mail]>
Acked-by: Alex Deucher <[e-mail]>
Tested-by: Tiago Martins Araújo <[e-mail]>
Cc: [e-mail]
Link: https://patch.msgid.link/710[e-mail]
Signed-off-by: Jani Nikula <[e-mail]>

include/drm/drm_edid.h

···
 	const char *name;
 };
 
+#define DRM_EDID_IDENT_INIT(_vend_chr_0, _vend_chr_1, _vend_chr_2, _product_id, _name) \
+{ \
+	.panel_id = drm_edid_encode_panel_id(_vend_chr_0, _vend_chr_1, _vend_chr_2, _product_id), \
+	.name = _name, \
+}
+
 #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8))
 
 /* Short Audio Descriptor */