arm64: dts: mt8192: Add the mmsys reset bit to reset the dsi0

Reset the DSI hardware is needed to prevent different settings between
the bootloader and the kernel.
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220318144534.17996-20-allen-kh.cheng@mediatek.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

include/dt-bindings/reset/mt8192-resets.h

@@ -27,4 +27,7 @@
 
 #define MT8192_TOPRGU_SW_RST_NUM				23
 
+/* MMSYS resets */
+#define MT8192_MMSYS_SW0_RST_B_DISP_DSI0			15
+
 #endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT8192 */