[XS] Change in coreboot[main]: mb/google/rauru: Add mtk-fsp loader in romstage

[Jarried Lin (Code Review)]

Attention is currently required from: Hung-Te Lin, Yidi Lin, Yu-Ping Wu.

Jarried Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/86015?usp=email )

Change subject: mb/google/rauru: Add mtk-fsp loader in romstage
......................................................................

mb/google/rauru: Add mtk-fsp loader in romstage

MediaTek firmware support package (mtk-fsp) is a new blob that include:
- Power Switch.

BUG=b:373797027
TEST=build pass, boot ok.
Load and run mtk_fsp with following logs:
[DEBUG]  FMAP: area FW_MAIN_A found @ 402000 (1527552 bytes)
[INFO ]  CBFS: Found 'fallback/mtk_fsp_romstage' @0xfc280 size 0x6bd in
         mcache @0x00122518
[INFO ]  VB2:vb2_digest_init() 1725 bytes, hash algo 2, HW acceleration
         enabled
[INFO ]  _start: MediaTek FSP_ROMSTAGE interface version: 1.0
[INFO ]  mtk_fsp_load_and_run: run fallback/mtk_fsp_romstage at phase
         0x30 done

Change-Id: Id223152e0bda71e99e72b34c91fea8f8841e824b
Signed-off-by: Jarried Lin 
---
M src/mainboard/google/rauru/romstage.c
1 file changed, 3 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/15/86015/1

diff --git a/src/mainboard/google/rauru/romstage.c b/src/mainboard/google/rauru/romstage.c
index d82e152..32c8a61 100644
--- a/src/mainboard/google/rauru/romstage.c
+++ b/src/mainboard/google/rauru/romstage.c
@@ -9,6 +9,7 @@
 #include <soc/mt6363.h>
 #include <soc/mt6373.h>
 #include <soc/mt6685.h>
+#include <soc/mtk_fsp.h>
 #include <soc/mtk_pwrsel.h>
 #include <soc/pcie.h>
 #include <soc/pll.h>
@@ -34,6 +35,8 @@
    mt6316_init();
    raise_little_cpu_freq();
    mt6373_init();
+	mtk_fsp_init(ROMSTAGE_INIT);
+	mtk_fsp_load_and_run();
    mt6685_init();
    srclken_rc_init();
    clk_buf_init();