sb2: export SBOX_TARGET_TOOLCHAIN_DIR environment variable
sb2: export SBOX_TARGET_TOOLCHAIN_DIR environment variable

contains path to the toolchain directory (e.g. "/opt/cs2007q3").

Signed-off-by: Timo Savola <eb2aba7b41b295106c9cdf90b977fbf114caeb86@movial.fi>

OlegGirko/ldbox,madscientist42/scratchbox2,madscientist42/scratchbox2,loganchien/scratchbox2,freedesktop-unofficial-mirror/sbox2,h113331pp/scratchbox2,neeraj9/sbox2,madscientist42/scratchbox2,neeraj9/sbox2,freedesktop-unofficial-mirror/sbox2,lbt/scratchbox2,BinChengfei/scratchbox2,madscientist42/scratchbox2,BinChengfei/scratchbox2,lbt/scratchbox2,lbt/scratchbox2,OlegGirko/ldbox,madscientist42/scratchbox2,h113331pp/scratchbox2,BinChengfei/scratchbox2,loganchien/scratchbox2,madscientist42/scratchbox2,OlegGirko/ldbox,neeraj9/sbox2,h113331pp/scratchbox2,lbt/scratchbox2,OlegGirko/ldbox,loganchien/scratchbox2,h113331pp/scratchbox2,ldbox/ldbox,BinChengfei/scratchbox2,loganchien/scratchbox2,ldbox/ldbox,ldbox/ldbox,ldbox/ldbox,neeraj9/sbox2,loganchien/scratchbox2,OlegGirko/ldbox,neeraj9/sbox2,BinChengfei/scratchbox2,BinChengfei/scratchbox2,freedesktop-unofficial-mirror/sbox2,h113331pp/scratchbox2,ldbox/ldbox,freedesktop-unofficial-mirror/sbox2,freedesktop-unofficial-mirror/sbox2,lbt/scratchbox2,freedesktop-unofficial-mirror/sbox2,ldbox/ldbox,loganchien/scratchbox2,h113331pp/scratchbox2,neeraj9/sbox2,OlegGirko/ldbox