powerpc/85xx: Add command to report errata workarounds

Add 'errata' command to report what errata we workaround.  Report
workaround for erratum SATA-A001 on P1022/P1013.

Also sorted the CONFIG_CMD_* list.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index a481326..4ee0e9a 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -32,6 +32,7 @@
 SOBJS-$(CONFIG_MP)	+= release.o
 SOBJS	= $(SOBJS-y)
 
+COBJS-$(CONFIG_CMD_ERRATA) += cmd_errata.o
 COBJS-$(CONFIG_CPM2)	+= commproc.o
 
 # supports ddr1