drm/amd/display: Fix failure to read vram info due to static BP_RESULT

The static declaration causes the check to fail.  Remove it.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3678
Fixes: 00c3911 ("drm/amd/display: Add misc DC changes for DCN401")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Hamish Claxton <hamishclaxton@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: aurabindo.pillai@amd.com
Cc: hamishclaxton@gmail.com
(cherry picked from commit 91314e7)
Cc: stable@vger.kernel.org # 6.11.x

drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c

@@ -3122,7 +3122,7 @@ static enum bp_result bios_parser_get_vram_info(
 		struct dc_vram_info *info)
 {
 	struct bios_parser *bp = BP_FROM_DCB(dcb);
-	static enum bp_result result = BP_RESULT_BADBIOSTABLE;
+	enum bp_result result = BP_RESULT_BADBIOSTABLE;
 	struct atom_common_table_header *header;
 	struct atom_data_revision revision;