classes/toolchain/clang: depend on llvm-native for tools, not clang

The relevant tools (objdump, strip, etc) are part of llvm-native now,
so trim dependencies and depend on that directly instead of clang-cross.

(From OE-Core rev: 732fb127b59b2d8fd23c2716355ba44f3f5a6a9d)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/toolchain/clang.bbclass

@@ -33,7 +33,7 @@ TUNE_CCARGS += "${@bb.utils.contains("DISTRO_FEATURES", "usrmerge", " --dyld-pre
 LDFLAGS:append:class-nativesdk:x86-64 = " -Wl,-dynamic-linker,${base_libdir}/ld-linux-x86-64.so.2"
 LDFLAGS:append:class-nativesdk:aarch64 = " -Wl,-dynamic-linker,${base_libdir}/ld-linux-aarch64.so.1"
 
-# do_populate_sysroot needs STRIP
-POPULATESYSROOTDEPS:append:class-target = " ${MLPREFIX}clang-cross-${TARGET_ARCH}:do_populate_sysroot"
+# do_populate_sysroot needs STRIP, do_package_qa needs OBJDUMP
+POPULATESYSROOTDEPS:append:class-target = " llvm-native:do_populate_sysroot"
 
 TCOVERRIDE = "toolchain-clang"