WEA2012 miss D/C and TE pin define

[StreakingJerry]

According to the datasheet: https://admin.osptek.com/uploads/YDP_172_H001_V3_419aecaaf7.pdf https://admin.osptek.com/uploads/SPD_2012_L_WEA_2012_0_30_2bb6345773.pdf

The TE signal is used for synchronizing the data frame. This is an output and can be ignored in some cases.

However, the D/C (Data/Command) pin is essential, but there is no usage of the TFT_DC in the PDQ graphicstest example.