[bsp] stm32:fix the lcd driver for stm32f429 discovery board.#2

Merged

BernardXiong merged 2 commits intoBernardXiong:stm32f429-discofrom

nongxiaoming:stm32f429-disco

Aug 12, 2020

Commits on Aug 11, 2020

[bsp] stm32:fix the lcd driver for stm32f429 discovery board.
nongxiaoming
committed

Commits on Aug 12, 2020

[bsp] stm32f429-st-disco:modify to use RT_USING_SPI default.
nongxiaoming
committed