binutils: fix libbfd missing DSO dependency if NLS enabled

The libbfd package definition uses $(ICONV_DEPENDS) and $(INTL_DEPENDS)
but links against neither, leading to libbfd detection failures in other
packages (e.g. bpftools) and on-target relocation problems with libintl.so:

  root@OpenWrt:/# ldd /usr/lib/libbfd.so
        ldd (0x77db6000)
        libc.so => ldd (0x77db6000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x77c6d000)
  Error relocating /usr/lib/libbfd.so: libintl_dgettext: symbol not found

Add NLS-conditional linking of "libintl" to fix this. Also remove libbfd
package dependency $(ICONV_DEPENDS) which is not used during building or
linking.

Tested with QEMU on malta/be32, after building all packages from binutils,
bpftools and iproute2, using different libc options musl and glibc.

Fixes: 08e8175696 ("binutils: use nls.mk to fix libbfd link errors in
other packages")
Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
(cherry picked from commit 9a59f62f61)

package/devel/binutils/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=binutils
 PKG_VERSION:=2.35.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_URL:=@GNU/binutils
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
@@ -34,7 +34,7 @@ define Package/libbfd
   SECTION:=libs
   CATEGORY:=Libraries
   TITLE:=libbfd
-  DEPENDS:=+zlib $(ICONV_DEPENDS) $(INTL_DEPENDS)
+  DEPENDS:=+zlib $(INTL_DEPENDS)
 endef
 
 define Package/libctf
@@ -79,6 +79,8 @@ endef
 
 TARGET_CFLAGS += $(FPIC) -Wno-unused-value
 
+TARGET_LDFLAGS += $(if $(INTL_FULL),-lintl)
+
 CONFIGURE_ARGS += \
 	--host=$(REAL_GNU_TARGET_NAME) \
 	--target=$(REAL_GNU_TARGET_NAME) \