soc/mediatek/mt8192: add pmic MT6359P driver

MT6359P is a PMIC chipset for Mediatek MT8192 platform.
Reference datasheet: MT6359_PMIC_Data_Sheet_V1.5.docx, RH-D-2018-0205.

BUG=b:155253454
BRANCH=none
TEST=boot asurada correctly

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Change-Id: I62f69490165539847b8b7260942644533b15285b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45399
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/mediatek/mt8192/bootblock.c

@@ -2,6 +2,7 @@
 
 #include <bootblock_common.h>
 #include <soc/mmu_operations.h>
+#include <soc/mt6359p.h>
 #include <soc/pll.h>
 #include <soc/pmif.h>
 #include <soc/wdt.h>
@@ -12,4 +13,5 @@ void bootblock_soc_init(void)
 	mtk_wdt_init();
 	mt_pll_init();
 	mtk_pmif_init();
+	mt6359p_init();
 }