iotop: Use lld with clang on arm

BFD linker is crashing when using clang, workaround it by always using
lld when using clang on arm

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/iotop/iotop_1.20.bb

@@ -12,6 +12,10 @@ inherit pkgconfig
 
 EXTRA_OEMAKE = "V=1 STRIP=true"
 
+# Workaround BFD linker crash with clang on arm
+# revisit when upgrading binutils and see if its fixed
+LDFLAGS:append:toolchain-clang:arm = " -fuse-ld=lld"
+
 do_install() {
     oe_runmake install DESTDIR=${D}
 }