Build chip data from new JSON format

The chip data XML format has been deprecated and the new JSON format
will be used going forward.

Signed-off-by: Zane Shelley <zshelle@us.ibm.com>
Change-Id: I2f44ae7bb921c9ab38c2664ab5cc2a9d6e2fd66a
diff --git a/meson.build b/meson.build
index 426467e..04136e9 100644
--- a/meson.build
+++ b/meson.build
@@ -71,7 +71,7 @@
 # Chip Data Files
 #-------------------------------------------------------------------------------
 
-subdir('xml')
+subdir('chip_data')
 
 #-------------------------------------------------------------------------------
 # Test