layerscape: drop armv8_32b support

NXP LSDK has decided to drop armv8_32b support considering
few users are using it.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

package/boot/uboot-layerscape-armv8_32b/Makefile

@@ -1,84 +0,0 @@
-#
-# Copyright (C) 2016 Jiang Yutang <jiangyutang1978@gmail.com>
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-
-include $(TOPDIR)/rules.mk
-
-PKG_NAME:=uboot-layerscape-armv8_32b
-PKG_VERSION:=lsdk-1806
-PKG_RELEASE:=1
-
-# Layerscape ARMv8 platforms use 64-bit u-boot to support both 32-bit and 64-bit
-# kernel/rootfs. Since OpenWrt could only provide 32-bit toolchain for 32-bit targets,
-# 64-bit u-boot images git tree is provided here whose source code actually is
-# uboot-layerscape's source code.
-PKG_SOURCE_PROTO:=git
-PKG_SOURCE_URL:=https://github.com/yangbolu1991/u-boot-lede.git
-PKG_SOURCE_VERSION:=a2a01facee0918bf724b4f0aec6746e2f1271519
-PKG_MIRROR_HASH:=5fcb58c14cdc934793ff315e178ad1d9d2ff55fcaac394b48ec116d1b11ca324
-
-include $(INCLUDE_DIR)/package.mk
-
-define Package/uboot-layerscape-armv8_32b/Config
-  define Package/u-boot-$(1)-image
-    SECTION:=boot
-    CATEGORY:=Boot Loaders
-    TITLE:=$(2)
-    DEPENDS:=@TARGET_layerscape_armv8_32b
-    CONFIG:=$(3)
-    ENV_SIZE:=$(4)
-  endef
-endef
-
-define Package/uboot-layerscape-armv8_32b/ls1012ardb
-  TITLE:=U-Boot image for NXP LS1012ARDB
-  CONFIG:=ls1012ardb-uboot.bin
-  ENV_SIZE:=0x40000
-endef
-
-define Package/uboot-layerscape-armv8_32b/ls1012afrwy
-  TITLE:=U-Boot image for NXP LS1012FRWY
-  CONFIG:=ls1012afrwy-uboot.bin
-  ENV_SIZE:=0x10000
-endef
-
-define Package/uboot-layerscape-armv8_32b/ls1043ardb
-  TITLE:=U-Boot image for NXP LS1043ARDB
-  CONFIG:=ls1043ardb-uboot.bin
-  ENV_SIZE:=0x20000
-endef
-
-define Package/uboot-layerscape-armv8_32b/ls1046ardb
-  TITLE:=U-Boot image for NXP LS1046ARDB
-  CONFIG:=ls1046ardb-uboot.bin
-  ENV_SIZE:=0x2000
-endef
-
-define Build/Compile
-endef
-
-define Package/uboot-layerscape-armv8_32b/Install
-  define Package/u-boot-$(1)-image/install
-	$(INSTALL_DIR) $(STAGING_DIR_IMAGE)
-	$(CP) $(PKG_BUILD_DIR)/$(CONFIG) $(STAGING_DIR_IMAGE)/
-	$(PKG_BUILD_DIR)/tools/mkenvimage -s $(ENV_SIZE) \
-		-o $(STAGING_DIR_IMAGE)/$(1)-uboot-env.bin \
-		../uboot-layerscape/files/$(1)-uEnv.txt
-  endef
-endef
-
-UBOOTS := \
-  ls1012ardb \
-  ls1012afrwy \
-  ls1043ardb \
-  ls1046ardb
-
-$(foreach u,$(UBOOTS), \
-	$(eval $(Package/uboot-layerscape-armv8_32b/$(u))) \
-	$(eval $(call Package/uboot-layerscape-armv8_32b/Config,$(u),$(TITLE),$(CONFIG),$(ENV_SIZE))) \
-	$(eval $(call Package/uboot-layerscape-armv8_32b/Install,$(u))) \
-	$(eval $(call BuildPackage,u-boot-$(u)-image)) \
-)