drm: msm: mdp4: Adjust indentation in mdp4_dsi_encoder_enable

Clang warns:

../drivers/gpu/drm/msm/disp/mdp4/mdp4_dsi_encoder.c:124:3: warning:
misleading indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
         mdp4_crtc_set_config(encoder->crtc,
         ^
../drivers/gpu/drm/msm/disp/mdp4/mdp4_dsi_encoder.c:121:2: note:
previous statement is here
        if (mdp4_dsi_encoder->enabled)
        ^

This warning occurs because there is a space after the tab on this line.
Remove it so that the indentation is consistent with the Linux kernel
coding style and clang no longer warns.

Fixes: 776638e ("drm/msm/dsi: Add a mdp4 encoder for DSI")
Link: ClangBuiltLinux#792
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

drivers/gpu/drm/msm/disp/mdp4/mdp4_dsi_encoder.c

@@ -121,7 +121,7 @@ static void mdp4_dsi_encoder_enable(struct drm_encoder *encoder)
 	if (mdp4_dsi_encoder->enabled)
 		return;
 
-	 mdp4_crtc_set_config(encoder->crtc,
+	mdp4_crtc_set_config(encoder->crtc,
 			MDP4_DMA_CONFIG_PACK_ALIGN_MSB |
 			MDP4_DMA_CONFIG_DEFLKR_EN |
 			MDP4_DMA_CONFIG_DITHER_EN |