endeavoru: Wi-Fi updates

Remove p2p_conc_mode to get rid of the following error:

E/wpa_supplicant(  759): Line 6: unknown global field 'p2p_conc_mode=2'.
E/wpa_supplicant(  759): Line 6: Invalid configuration line 'p2p_conc_mode=2'.

Change-Id: Icad5dddfa8c4e9841ead7d181de3d9fddbd8ba66
Enabled flag to optimize performance on nakasi.

We are now using fake shadows and hardware layers.
The wallpaper is now shown again, since the performance
allows it.

Change-Id: Ibdad607b59e18eb0ff88535af1882e36e9e14791