vendorcode/mediatek/mt8195: Fix set but unused variables

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I5738e73f2121e2558831fbaa9c92a2fd0926ad88
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75038
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
diff --git a/src/vendorcode/mediatek/mt8195/include/dramc_common.h b/src/vendorcode/mediatek/mt8195/include/dramc_common.h
index 393612c..b0a6e31 100644
--- a/src/vendorcode/mediatek/mt8195/include/dramc_common.h
+++ b/src/vendorcode/mediatek/mt8195/include/dramc_common.h
@@ -249,7 +249,7 @@
     #else
     #define mcSHOW_DBG_MSG(_x_) { if (0) { print _x_; } }
     #define mcSHOW_DBG_MSG2(_x_) { if (0) { print _x_; } }
-    #define mcSHOW_DBG_MSG3(_x_)
+    #define mcSHOW_DBG_MSG3(_x_) { if (0) { print _x_; } }
     #define mcSHOW_DBG_MSG4(_x_) { if (0) { print _x_; } }
     #define mcSHOW_DBG_MSG5(_x_)
     #define mcSHOW_DBG_MSG6(_x_)