soc/amd/picasso,common: move ALIB DPTC parameter struct to common code

Also add an alib_ prefix to avoid possible name collisions.

TEST=Timeless build for Mandolin results in identical binary.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ib0f220a4cde6da764bb8bc589b5f44ae16496bd7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53918
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/picasso/root_complex.c b/src/soc/amd/picasso/root_complex.c
index c0b444f..979da3e 100644
--- a/src/soc/amd/picasso/root_complex.c
+++ b/src/soc/amd/picasso/root_complex.c
@@ -20,14 +20,9 @@
 
 #define DPTC_TOTAL_UPDATE_PARAMS	4
 
-struct dptc_param {
-	uint8_t id;
-	uint32_t value;
-} __packed;
-
 struct dptc_input {
 	uint16_t size;
-	struct dptc_param params[DPTC_TOTAL_UPDATE_PARAMS];
+	struct alib_dptc_param params[DPTC_TOTAL_UPDATE_PARAMS];
 } __packed;
 
 #define DPTC_INPUTS(_thermctllmit, _sustained, _fast, _slow)			\