dav1d: Use GNU assembler for asm files

Signed-off-by: Khem Raj <[email protected]>

Author: kraj

conf/nonclangable.conf

@@ -475,6 +475,9 @@ DEPENDS:append:pn-pixman:mips:toolchain-clang = " openmp"
 #| .endfunc
 #| ^
 CFLAGS:append:pn-pixman:arm:toolchain-clang = " -no-integrated-as"
+# <instantiation>:98:23: error: operand must be e[8|16|32|64|128|256|512|1024],m[1|2|4|8|f2|f4|f8],[ta|tu],[ma|mu]
+#  vsetvli zero, zero, e16, m1
+CFLAGS:append:pn-dav1d:riscv64:toolchain-clang = " -no-integrated-as"
 
 # ERROR: babeltrace2-2.0.5-r0 do_package_qa: QA Issue: babeltrace2: ELF binary /usr/lib/babeltrace2/plugins/babeltrace-plugin-ctf.so has relocations in .text
 INSANE_SKIP:append:pn-babeltrace2:toolchain-clang = "${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-lld', ' textrel', '', d)}"