mb/google/brya/nivviks/overridetree: update tcss_aux_ori register name

Commit 215a97ee1c4cd87b266d63e32bf0b379e18fe849 (soc/intel/adl/chip.h:
Convert all camel case variables to snake case) converted the camel case
used in the parameter name to snake case, but
commit bd529e2e200a8fbfd455dd62be0494a2b727b9a5 (mb/google/nissa/var/
nivviks: Add TcssAuxori for nivviks) still used the old names which
breaks the upstream build. his patch is intended to be merged via
fast-path before the 24h are over to fix the tree.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I2b9049553889c77bd8c59a2c4564d36d836a4eea
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62927
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brya/variants/nivviks/overridetree.cb b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
index d423ffb..c870b37 100644
--- a/src/mainboard/google/brya/variants/nivviks/overridetree.cb
+++ b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
@@ -16,7 +16,7 @@
 	# Bit0,Bit2 set to "1" indicates no retimer on USBC Ports
 	# Bit1,Bit3 set to "0" indicates Aux lines are not swapped on the
 	# motherboard to USBC connector
-	register "TcssAuxOri" = "5"
+	register "tcss_aux_ori" = "5"
 
 	register "typec_aux_bias_pads[0]" = "{.pad_auxp_dc = GPP_E22, .pad_auxn_dc = GPP_E23}"
 	register "typec_aux_bias_pads[1]" = "{.pad_auxp_dc = GPP_A21, .pad_auxn_dc = GPP_A22}"