hwrng: remove Michael as HWRNG maintainer

It turns out that I rewrote the HWRNG core once to make it pluggable, but
I'm not a crypto-expert at all.  So I'm certainly the wrong person for
being a maintainer of the HWRNG core.  Let's orphan it.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 25af178..36c7bc6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1712,9 +1712,7 @@
 S:	Maintained
 
 HARDWARE RANDOM NUMBER GENERATOR CORE
-P:	Michael Buesch
-M:	mb@bu3sch.de
-S:	Maintained
+S:	Orphaned
 
 HARD DRIVE ACTIVE PROTECTION SYSTEM (HDAPS) DRIVER
 P:	Robert Love