Add Arm eabi default config tests

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
diff --git a/tests/scripts/all-core.sh b/tests/scripts/all-core.sh
index ccd7e59..bd0cadd 100644
--- a/tests/scripts/all-core.sh
+++ b/tests/scripts/all-core.sh
@@ -227,6 +227,7 @@
     : ${ARMC6_BIN_DIR:=/usr/bin}
     : ${ARM_NONE_EABI_GCC_PREFIX:=arm-none-eabi-}
     : ${ARM_LINUX_GNUEABI_GCC_PREFIX:=arm-linux-gnueabi-}
+    : ${ARM_LINUX_GNUEABIHF_GCC_PREFIX:=arm-linux-gnueabihf-}
     : ${CLANG_LATEST:="clang-latest"}
     : ${CLANG_EARLIEST:="clang-earliest"}
     : ${GCC_LATEST:="gcc-latest"}