[U-Boot] [PATCH v3] mpq101: initial support for Mercury Computer Systems MPQ101 board

[Alex Dubov]

> 
> And you still have a board/mercury/mpq101/config.mk even
> though I
> asked you to get rid of it.
> 

1. I want to fit an environment and the bootloader into a single flash
sector.
2. Environment must be on the sector boundary, otherwise saveenv won't
rewrite it.
3. If I don't fix up the ppcenv starting address, the resulting u-boot
image will shrink by the environment size and won't start on sector
boundary itself.
4. Other boards use handcrafted ld scripts to fit environments at right
boundaries.

That's why I need the LDFLAGS in question.
If not in config.mk, where am I supposed to put them?
Custom ld script is definitely an overshoot in this and other similar
cases.