dts: Replaced imx8mp and imx8mp-pinfunc

Replaced imx8mp-pinfunc.h and imx8mp.dtsi with the files provided
with the 5.15 kernel.

arch/arm64/boot/dts/seconorth/imx8mp-pinfunc.h

@@ -6,15 +6,14 @@
 #ifndef __DTS_IMX8MP_PINFUNC_H
 #define __DTS_IMX8MP_PINFUNC_H
 
-// Not tested!
-#define MX8MP_IOMUXC_PULLUP_ENABLE   0x140
-#define MX8MP_IOMUXC_PULLDOWN_ENABLE 0x100
-#define MX8MP_IOMUXC_HYS             0x080
-#define MX8MP_IOMUXC_OPEN_DRAIN      0x020
-#define MX8MP_IOMUXC_SLEW(a)        (((a)&0x03)<<3)
-#define MX8MP_IOMUXC_FAST            0x010
-#define MX8MP_IOMUXC_SLOW            0x008
-#define MX8MP_IOMUXC_DRIVE(a)       ((a)&0x7)
+#define MX8MP_IOMUXC_PULLUP_ENABLE      0x140
+#define MX8MP_IOMUXC_PULLDOWN_ENABLE    0x100
+#define MX8MP_IOMUXC_HYS                0x080
+#define MX8MP_IOMUXC_OPEN_DRAIN         0x020
+#define MX8MP_IOMUXC_SLEW(a)            (((a)&0x03)<<3)
+#define MX8MP_IOMUXC_FAST               0x010
+#define MX8MP_IOMUXC_SLOW               0x008
+#define MX8MP_IOMUXC_DRIVE(a)           ((a)&0x7)
 
 /*
  * The pin function ID is a tuple of
@@ -732,7 +731,7 @@
 #define MX8MP_IOMUXC_I2C3_SDA__GPIO5_IO19                            0x214 0x474 0x000 0x5 0x0
 #define MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL                              0x218 0x478 0x5BC 0x0 0x5
 #define MX8MP_IOMUXC_I2C4_SCL__PWM2_OUT                              0x218 0x478 0x000 0x1 0x0
-#define MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B                         0x218 0x478 0x5A0 0x2 0x0
+#define MX8MP_IOMUXC_I2C4_SCL__PCIE_CLKREQ_B                         0x218 0x478 0x5A0 0x12 0x0
 #define MX8MP_IOMUXC_I2C4_SCL__ECSPI2_MISO                           0x218 0x478 0x56C 0x3 0x2
 #define MX8MP_IOMUXC_I2C4_SCL__GPIO5_IO20                            0x218 0x478 0x000 0x5 0x0
 #define MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA                              0x21C 0x47C 0x5C0 0x0 0x5