[POWERPC] bestcomm: GenBD task support

This is the microcode for the GenBD task and the associated
support code. This is a generic task that copy data to/from
a hardware FIFO. This is currently locked to 32bits wide
access but could be extended as needed.

The microcode itself comes directly from the offical
API (v2.2)

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

arch/powerpc/sysdev/bestcomm/Kconfig

@@ -30,3 +30,10 @@ config PPC_BESTCOMM_FEC
 	help
 	  This option enables the support for the FEC tasks.
 
+config PPC_BESTCOMM_GEN_BD
+	tristate "Bestcomm GenBD tasks support"
+	depends on PPC_BESTCOMM
+	default n
+	help
+	  This option enables the support for the GenBD tasks.
+