ARM: dts: msm: Remove useless DSI panel commands for adv7533

Remove "qcom,mdss-dsi-on-command" and "mdss-dsi-off command"
commands for boot up performance optimization.
The two commands are for native DSI panels without a bridge
chip. However,AUTO platform has adv7533 bridge chip,which
is controlled by I2C instead of the above two commands.
In addition,the two command will cause extra wait for about
210ms in dsi_panel_tx_cmd_set() for dsi_display_enbale().
This make drmAtomicCommit() in libdrm a little slower,
so total boot time will be longer.

Change-Id: I848d189d4055b5626eadd809fc5da7c9c4ecbcce
Signed-off-by: Daocai <daocai@codeaurora.org>