u-boot: remove unnecessary patches for Digi platforms

Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>

meta-digi-arm/recipes-bsp/u-boot/files/10m50-update-device-tree.patch

@@ -1,28 +0,0 @@
-Nios II for MAX10 10m50 board requires update to 
-its device tree to enable CPU driver during
-u-boot pre-relocation. This patch tag the CPU 
-with dm-pre-reloc flag.
-
-Upstream-Status: Submitted
-
-Signed-off-by: Gan, Yau Wai <yau.wai.gan@intel.com>
-
----
- arch/nios2/dts/10m50_devboard.dts | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/arch/nios2/dts/10m50_devboard.dts b/arch/nios2/dts/10m50_devboard.dts
-index 05eac30..461ae68 100644
---- a/arch/nios2/dts/10m50_devboard.dts
-+++ b/arch/nios2/dts/10m50_devboard.dts
-@@ -19,6 +19,7 @@
- 		#size-cells = <0>;
- 
- 		cpu: cpu@0 {
-+			u-boot,dm-pre-reloc;
- 			device_type = "cpu";
- 			compatible = "altr,nios2-1.1";
- 			reg = <0x00000000>;
--- 
-2.7.4
-

meta-digi-arm/recipes-bsp/u-boot/files/MPC8315ERDB-enable-DHCP.patch

@@ -1,19 +0,0 @@
-Enabled dhcp client functionality for Yocto reference
-hardware MPC8315E-RDB.
-
-Upstream-Status: Pending
-
-Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
-
-diff --git a/configs/MPC8315ERDB_defconfig b/configs/MPC8315ERDB_defconfig
-index 4e2b705..b02ab1f 100644
---- a/configs/MPC8315ERDB_defconfig
-+++ b/configs/MPC8315ERDB_defconfig
-@@ -9,6 +9,7 @@ CONFIG_HUSH_PARSER=y
- CONFIG_CMD_I2C=y
- CONFIG_CMD_USB=y
- # CONFIG_CMD_SETEXPR is not set
-+CONFIG_CMD_DHCP=y
- CONFIG_CMD_MII=y
- CONFIG_CMD_PING=y
- CONFIG_CMD_EXT2=y

meta-digi-arm/recipes-bsp/u-boot/u-boot-common_2017.09.inc

@@ -10,8 +10,6 @@ PE = "1"
 SRCREV = "c98ac3487e413c71e5d36322ef3324b21c6f60f9"
 
 SRC_URI = "git://git.denx.de/u-boot.git \
-    file://MPC8315ERDB-enable-DHCP.patch \
-    file://10m50-update-device-tree.patch \
 "
 
 S = "${WORKDIR}/git"