Fix typo in SB800 Kconfig for IMC position

The cimx/sb800 IMC Firmware location Kconfig option has
a typo which would could set it to the wrong location.

Change-Id: I38016bebd1bfe6ad6d3f1c02cb1960712fbf4ab2
Signed-off-by: Martin Roth <martin@se-eng.com>
Reviewed-on: http://review.coreboot.org/2120
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/southbridge/amd/cimx/sb800/Kconfig b/src/southbridge/amd/cimx/sb800/Kconfig
index 54c38d8..1f3ee9a 100644
--- a/src/southbridge/amd/cimx/sb800/Kconfig
+++ b/src/southbridge/amd/cimx/sb800/Kconfig
@@ -191,7 +191,7 @@
 	default 0xFFF20000 if SB800_FWM_AT_FFF20000
 	default 0xFFE20000 if SB800_FWM_AT_FFE20000
 	default 0xFFC20000 if SB800_FWM_AT_FFC20000
-	default 0xFF820000 if SB800_FWM_AT_FFE20000
+	default 0xFF820000 if SB800_FWM_AT_FF820000
 
 endif  #SB800_IMC_FWM