u-boot: Upgrade to 2018.03 release

This upgrades the U-Boot from 2018.01 to 2018.03 release and drops
patches accepted upstream, getting the patch count to zero.

(From OE-Core rev: c1d680326cabd10d0940827e8dfdc884f67b1e9a)

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Ross Burton <ross.burton@intel.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/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>
-
-Index: git/configs/MPC8315ERDB_defconfig
-===================================================================
---- git.orig/configs/MPC8315ERDB_defconfig
-+++ git/configs/MPC8315ERDB_defconfig
-@@ -12,6 +12,7 @@ CONFIG_CMD_PCI=y
- CONFIG_CMD_SATA=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_DATE=y

meta/recipes-bsp/u-boot/u-boot-common_2018.03.inc

@@ -7,10 +7,8 @@ PE = "1"
 
 # We use the revision in order to avoid having to fetch it from the
 # repo during parse
-SRCREV = "f3dd87e0b98999a78e500e8c6d2b063ebadf535a"
+SRCREV = "f95ab1fb6e37f0601f397091bb011edf7a98b890"
 
-SRC_URI = "git://git.denx.de/u-boot.git \
-    file://MPC8315ERDB-enable-DHCP.patch \
-"
+SRC_URI = "git://git.denx.de/u-boot.git"
 
 S = "${WORKDIR}/git"