Embedded Maintainer(s), linux-embedded@vger list

Add Paul and myself, and the linux-embedded list, to MAINTAINERS.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>