configurations: add ASRock E3C246D4I board

This board exposes a XeonCPU, a w83773g motherboard temperature sensor,
and various ADC voltage sensors.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Change-Id: I9e7c2ff49ad5e0442e8b48fc26c856a88c1f59ee
diff --git a/meson.build b/meson.build
index 4302724..7f828ac 100644
--- a/meson.build
+++ b/meson.build
@@ -79,6 +79,7 @@
     'A2UL16RISER.json',
     'A2UX8X4RISER.json',
     'ACBELL_RICA_PSU.json',
+    'ASRock_E3C246D4I.json',
     'Blyth.json',
     'AHW1UM2RISER.json',
     'ASPOWER_U1A-D10550_PSU.json',