drm/amd/display: fix assert condition

[Why & How]
Reversed assert condition when checking that phy_pix_clk[] is not 0
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c

@@ -322,7 +322,7 @@ void dcn32_determine_det_override(struct dc *dc,
 
 	/* Check for special case with two displays, one with much higher pixel rate */
 	if (stream_count == 2) {
-		ASSERT(!phy_pix_clk[0] || !phy_pix_clk[1]);
+		ASSERT((phy_pix_clk[0] > 0) && (phy_pix_clk[1] > 0));
 		if (phy_pix_clk[0] < phy_pix_clk[1]) {
 			lower_mode_stream_index = 0;
 			phy_pix_clk_mult = phy_pix_clk[1] / phy_pix_clk[0];