ich_descriptors_tool: Change region name EC/BMC -> EC_BMC

The region names are used to produce file names for extraction.
They better not contain any slash.

Change-Id: Id45df466e7a15fac89b8afb390bb21ea6c573d58
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/312
Reviewed-by: Felix Singer <felixsinger@posteo.net>
diff --git a/util/ich_descriptors_tool/ich_descriptors_tool.c b/util/ich_descriptors_tool/ich_descriptors_tool.c
index 5cad9d4..89e0cd3 100644
--- a/util/ich_descriptors_tool/ich_descriptors_tool.c
+++ b/util/ich_descriptors_tool/ich_descriptors_tool.c
@@ -38,7 +38,7 @@
 
 static const char *const region_names[] = {
 	"Descriptor", "BIOS", "ME", "GbE", "Platform",
-	"Region5", "BIOS2", "Region7", "EC/BMC", "Region9",
+	"Region5", "BIOS2", "Region7", "EC_BMC", "Region9",
 	"IE", "10GbE", "Region12", "Region13", "Region14",
 	"Region15"
 };