build: Add objcopy host tool

Qt's mkspec references the objcopy tool.

Author: hebasto

depends/hosts/default.mk

@@ -9,6 +9,7 @@ default_host_RANLIB = $(host_toolchain)ranlib
 default_host_STRIP = $(host_toolchain)strip
 default_host_LIBTOOL = $(host_toolchain)libtool
 default_host_NM = $(host_toolchain)nm
+default_host_OBJCOPY = $(host_toolchain)objcopy
 
 define add_host_tool_func
 ifneq ($(filter $(origin $1),undefined default),)
@@ -33,5 +34,5 @@ host_$1 = $$($(host_arch)_$(host_os)_$1)
 host_$(release_type)_$1 = $$($(host_arch)_$(host_os)_$(release_type)_$1)
 endef
 
-$(foreach tool,CC CXX AR RANLIB STRIP NM LIBTOOL OTOOL INSTALL_NAME_TOOL DSYMUTIL,$(eval $(call add_host_tool_func,$(tool))))
+$(foreach tool,CC CXX AR RANLIB STRIP LIBTOOL NM OBJCOPY OTOOL INSTALL_NAME_TOOL DSYMUTIL,$(eval $(call add_host_tool_func,$(tool))))
 $(foreach flags,CFLAGS CXXFLAGS CPPFLAGS LDFLAGS, $(eval $(call add_host_flags_func,$(flags))))