drm/msm/dpu: drop LM_3 / LM_4 on SDM845

On the SDM845 platform ther are no LM_3 and LM_4 blocks. Drop them from
the SDM845 catalog.

Fixes: 25fdd59 ("drm/msm: Add SDM845 DPU support")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/612586/
Link: https://lore.kernel.org/r/20240905-dpu-fix-sdm845-catalog-v1-2-3363d03998bd@linaro.org

Author: lumag

drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_4_0_sdm845.h

@@ -155,18 +155,6 @@ static const struct dpu_lm_cfg sdm845_lm[] = {
 		.lm_pair = LM_5,
 		.pingpong = PINGPONG_2,
 		.dspp = DSPP_2,
-	}, {
-		.name = "lm_3", .id = LM_3,
-		.base = 0x0, .len = 0x320,
-		.features = MIXER_SDM845_MASK,
-		.sblk = &sdm845_lm_sblk,
-		.pingpong = PINGPONG_NONE,
-	}, {
-		.name = "lm_4", .id = LM_4,
-		.base = 0x0, .len = 0x320,
-		.features = MIXER_SDM845_MASK,
-		.sblk = &sdm845_lm_sblk,
-		.pingpong = PINGPONG_NONE,
 	}, {
 		.name = "lm_5", .id = LM_5,
 		.base = 0x49000, .len = 0x320,