panel-mapphone: Always pass false to omapdss_dsi_enable_te as that's how it works in the 2.6.32 kernel.

This seems to fix the "Framedone not received for 250ms!" issue.
252f6b97c24dbeed3dec8b79d104097d55cb0610 broke it accidentally.
Previously the value of te_type was cast to bool which resulted in "false"
because te_type has the enum value "OMAP_DSI_TE_MIPI_PHY    = 0".

Change-Id: Ia0524b8786fe527b906f00a8e43f12e56cb86d9a