common: board_f: vid: Add VID specific API to adjust core voltage

Adds a VID specific API in init_sequence_f and spl code flow
namely init_func_vid which is required to adjust core voltage.

VID specific code is required in spl, hence moving flag CONFIG_VID
out of spl flags.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/common/board_f.c b/common/board_f.c
index 0bdce64..7f594d9 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -200,6 +200,13 @@
 }
 #endif
 
+#if defined(CONFIG_VID)
+__weak int init_func_vid(void)
+{
+	return 0;
+}
+#endif
+
 #if defined(CONFIG_HARD_SPI)
 static int init_func_spi(void)
 {
@@ -801,6 +808,9 @@
 #if defined(CONFIG_SYS_I2C)
 	init_func_i2c,
 #endif
+#if defined(CONFIG_VID) && !defined(CONFIG_SPL)
+	init_func_vid,
+#endif
 #if defined(CONFIG_HARD_SPI)
 	init_func_spi,
 #endif