configurations: yosemite4: Support fourth sources Medusa board

To add fourth sources Medusa board config.
Test Case: config can be loaded and sensors can be read.

Change-Id: I83a8ee1aeff8c8e1a24bce5be923296751058320
Signed-off-by: Ian Chien <ianchien.wiwynn@gmail.com>
diff --git a/meson.build b/meson.build
index 5b233f5..1508588 100644
--- a/meson.build
+++ b/meson.build
@@ -211,6 +211,7 @@
     'yosemite4_medusaboard_adc_ti_hsc_adi.json',
     'yosemite4_medusaboard_adc_ti_12vhsc_mps_48vhsc_inf.json',
     'yosemite4_medusaboard_adc_ti_12vhsc_adi_48vhsc_inf.json',
+    'yosemite4_medusaboard_adc_ti_12vhsc_mps_48vhsc_adi.json',
     'yosemite4_medusaboard_adc_rns_12vhsc_mps_48vhsc_inf.json',
     'yosemite4_spiderboard_adc_ti_pwr_ti.json',
     'yosemite4_spiderboard_adc_max_pwr_ti.json',