board: siemens: iot2050: Control pcie power for all variants

The power control pin of pcie interface not only works for M.2 interface
but also for miniPCIE, so promote this logic to all variants to
workaround the module hang issue.

Signed-off-by: Baocheng Su <baocheng.su@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Michael Trimarchi <michael@amarulasolutions.com>

board/siemens/iot2050/board.c

@@ -185,6 +185,12 @@ static void remove_mmc1_target(void)
 	free(boot_targets);
 }
 
+static void enable_pcie_connector_power(void)
+{
+	set_pinvalue("gpio@601000_17", "P3V3_PCIE_CON_EN", 1);
+	udelay(4 * 100);
+}
+
 void set_board_info_env(void)
 {
 	struct iot2050_info *info = IOT2050_INFO_DATA;
@@ -288,10 +294,6 @@ static void m2_connector_setup(void)
 	struct m2_config_pins config_pins;
 	unsigned int n;
 
-	/* enable M.2 connector power */
-	set_pinvalue("gpio@601000_17", "P3V3_M2_EN", 1);
-	udelay(4 * 100);
-
 	if (m2_manual_config < CONNECTOR_MODE_INVALID) {
 		mode_info = " [manual mode]";
 		connector_mode = m2_manual_config;
@@ -429,6 +431,8 @@ int board_late_init(void)
 	/* change CTRL_MMR register to let serdes0 not output USB3.0 signals. */
 	writel(0x3, SERDES0_LANE_SELECT);
 
+	enable_pcie_connector_power();
+
 	if (board_is_m2())
 		m2_connector_setup();