feat(plat/mediatek/mt8186): add pwrap and pmic driver

1. Add 8186 pwrap driver to access pmic.
2. Add 6366 pmic driver to support clean PWRHOLD.

TEST=build pass
BUG=b:202871018

Signed-off-by: James Lo <james.lo@mediatek.corp-partner.google.com>
Change-Id: I3bc90460a6a55dff8d3293e04482abcad789bbb2
diff --git a/plat/mediatek/mt8186/include/platform_def.h b/plat/mediatek/mt8186/include/platform_def.h
index d73466b..27cd4da 100644
--- a/plat/mediatek/mt8186/include/platform_def.h
+++ b/plat/mediatek/mt8186/include/platform_def.h
@@ -30,6 +30,11 @@
 #define UART_BAUDRATE			115200
 
 /*******************************************************************************
+ * PWRAP related constants
+ ******************************************************************************/
+#define PMIC_WRAP_BASE			(IO_PHYS + 0x0000D000)
+
+/*******************************************************************************
  * EMI MPU related constants
  ******************************************************************************/
 #define EMI_MPU_BASE		(IO_PHYS + 0x0021B000)