async_tx: update MAINTAINERS for async_tx and iop-adma

Also, rename the dma engine entry since it is now a generic offload engine
subsystem, not just memcpy.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>

MAINTAINERS

@@ -612,6 +612,15 @@ W:	http://sourceforge.net/projects/acpi4asus
 W:	http://xf.iksaif.net/acpi4asus
 S:	Maintained
 
+ASYNCHRONOUS TRANSFERS/TRANSFORMS API
+P:	Dan Williams
+M:	dan.j.williams@intel.com
+P:	Shannon Nelson
+M:	shannon.nelson@intel.com
+L:	linux-kernel@vger.kernel.org
+W:	http://sourceforge.net/projects/xscaleiop
+S:	Supported
+
 ATA OVER ETHERNET DRIVER
 P:	Ed L. Cashin
 M:	ecashin@coraid.com
@@ -1277,11 +1286,13 @@ M:	tori@unhappy.mine.nu
 L:	netdev@vger.kernel.org
 S:	Maintained
 
-DMA GENERIC MEMCPY SUBSYSTEM
+DMA GENERIC OFFLOAD ENGINE SUBSYSTEM
 P:	Shannon Nelson
 M:	shannon.nelson@intel.com
+P:	Dan Williams
+M:	dan.j.williams@intel.com
 L:	linux-kernel@vger.kernel.org
-S:	Maintained
+S:	Supported
 
 DME1737 HARDWARE MONITOR DRIVER
 P:	Juerg Haefliger
@@ -1958,6 +1969,12 @@ M:	shannon.nelson@intel.com
 L:	linux-kernel@vger.kernel.org
 S:	Supported
 
+INTEL IOP-ADMA DMA DRIVER
+P:	Dan Williams
+M:	dan.j.williams@intel.com
+L:	linux-kernel@vger.kernel.org
+S:	Supported
+
 INTEL IXP4XX RANDOM NUMBER GENERATOR SUPPORT
 P:	Deepak Saxena
 M:	dsaxena@plexity.net