crossgcc [binutils]: Remove invalid enable-interwork option

'enable-interwork' is not a binutils configure option.

Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Change-Id: I29cd6137c700ff6871868a723daf33909aa218ff
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65609
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>

util/crossgcc/buildgcc

@@ -685,8 +685,7 @@ build_BINUTILS() {
 	../binutils-${BINUTILS_VERSION}/configure --prefix="$TARGETDIR" \
 		--target=${TARGETARCH} --enable-targets=${TARGETARCH}${ADDITIONALTARGET} \
 		--disable-werror --disable-nls --enable-lto --enable-gold \
-		--enable-interwork --enable-multilib \
-		--enable-plugins \
+		--enable-multilib --enable-plugins \
 		CFLAGS="$HOSTCFLAGS" \
 		CXXFLAGS="$HOSTCFLAGS" \
 		|| touch .failed