MAINTAINERS: update arch/arm/mach-davinci

It's time to officially admit I'm not doing anything useful for
mach-davinci anymore.  Since Bartosz is bringing all the code I wrote
10+ years ago into the modern era, he should take over.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

MAINTAINERS

@@ -15457,7 +15457,7 @@ F:	include/linux/clk/ti.h
 
 TI DAVINCI MACHINE SUPPORT
 M:	Sekhar Nori <nsekhar@ti.com>
-M:	Kevin Hilman <khilman@kernel.org>
+R:	Bartosz Golaszewski <bgolaszewski@baylibre.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.git
 S:	Supported