Add new board PixFlamingo F7

[tsubashchandar]

Added new board

[tsubashchandar]

how to include this hw into 4.4.3 branches , Kindly help on this

[Hwurzburg]

needs pinouts,bd photos,typical wriring diagram, where to buy in a readme file....see https://github.com/ArduPilot/ardupilot/blob/master/libraries/AP_HAL_ChibiOS/hwdef/KakuteH7-Wing/README.md for an example

also needs the bootloader files in the Tools/bootloaders directory

[tsubashchandar]

needs pinouts,bd photos,typical wriring diagram, where to buy in a readme file....see https://github.com/ArduPilot/ardupilot/blob/master/libraries/AP_HAL_ChibiOS/hwdef/KakuteH7-Wing/README.md for an example

also needs the bootloader files in the Tools/bootloaders directory

I have updated the changes .Kindly check this

[Hwurzburg]

@tsubashchandar thanks, readme started but fairly incomplete...refer to example given..still needs board photo, where to buy,wiring/pinouts...also uart section needs dma capabilities, etc.

[IamPete1]

I have rebased and fixedup the commit history.

[IamPete1]

Added dev call tag so we won't forget to follow up.

[tsubashchandar]

I have rebased and fixedup the commit history.

Thanks

[tsubashchandar]

@IamPete1 @Hwurzburg I have made the changes .

[Hwurzburg]

still needs DMA comments fixed...needs rebase, squash, library commits split into two commits wwith proper commit messages, see Tools/gittools/git-subsystems split utility

[Hwurzburg]

Suggested change

	- SERIAL6 -> USART2 (User) DMA Enabled
	- SERIAL6 -> USART2 (User) RX only is DMA Enabled

[tsubashchandar]

ok

[tsubashchandar]

@Hwurzburg @IamPete1 I have fixed the review comments, only hwdef files I changed , other files need to be rebased , help me on that

[IamPete1]

Squashed and rebased. @tsubashchandar You should now pull this branch down to your local repo so any further changes are added on top. You should also prefix your commit messages with the subsystem they changing, in this case AP_HAL_ChibiOS:

[tridge]

@Hwurzburg will check that the requested changes have been made

[tsubashchandar]

@IamPete1 @IamPete1 how to backport to 4.4 or 4.5 branch ?

[IamPete1]

Too late for 4.4. I have marked for 4.5.