Add CFLAGS for armv8r-none-eabihf

Author: thejpster

src/ci/docker/host-x86_64/dist-various-1/Dockerfile

@@ -131,6 +131,8 @@ ENV CFLAGS_armv5te_unknown_linux_musleabi="-march=armv5te -marm -mfloat-abi=soft
     CC_armv7a_none_eabihf=arm-none-eabi-gcc \
     CFLAGS_armv7a_none_eabi=-march=armv7-a \
     CFLAGS_armv7a_none_eabihf=-march=armv7-a+vfpv3 \
+    CC_armv8r_none_eabihf=arm-none-eabi-gcc \
+    CFLAGS_armv8r_none_eabihf="-march=armv8-r+fp.sp -mfpu=fp-armv8" \
     CC_aarch64_unknown_none_softfloat=aarch64-none-elf-gcc \
     CFLAGS_aarch64_unknown_none_softfloat=-mstrict-align -march=armv8-a+nofp+nosimd \
     CC_aarch64_unknown_none=aarch64-none-elf-gcc \