The packed-attribute on the tcb_info_s type was misplaced, which caused
incompatible memory layout between host and target. According to
current GCC documentation:
> You may specify type attributes in an enum, struct or union type
> declaration or definition by placing them immediately after the struct,
> union or enum keyword. You can also place them just past the closing
> curly brace of the definition, but this is less preferred because
> logically the type should be fully defined at the closing brace.
I also added jlink-nuttx.so to the .gitignore list and updated nxstyle
to ignore the camel case function names required by JLinkGDBServer.
Signed-off-by: Michael Jung <mijung@gmx.net>