[oe] ANGSTROM_MODE renamed to ANGSTROMLIBC

[Koen Kooi]

Hi,

Due to changes in how bitbake handles environment vars ANGSTROM_MODE has 
been renamed to ANGSTROMLIBC:

http://cgit.openembedded.net/cgit.cgi?url=openembedded/commit/&id=325476d19b821623dbe151d7026c20dfd3754432 


Please update your private buildscripts accordingly, the public angstrom 
ones have already been updated.

regards,

Koen