Add HS UcLibc toolchain for big endian on Linux

Signed-off-by: Yunlu Zhang <Yunlu.Zhang@synopsys.com>

01:03:15 **** Build of configuration Debug for project hs ****
make all
Building file: ../src/crt0.S
Invoking: ARC Linux UcLibc GCC Assembler
arceb-buildroot-linux-uclibc-gcc -x assembler-with-cpp -Wall -Wa,-adhlns="src/crt0.o.lst" -c -fmessage-length=0 -MMD -MP -MF"src/crt0.d" -MT"src/crt0.d" -mHS -mbig-endian -mmpy-option=2 -g3 -gdwarf-2 -mbarrel-shifter -mcode-density -mnorm -mswap -mshift-assist -o "src/crt0.o" "../src/crt0.S"
Finished building: ../src/crt0.S

Building file: ../src/hs.c
Invoking: ARC Linux UcLibc GCC C Compiler
arceb-buildroot-linux-uclibc-gcc -O0 -Wall -Wa,-adhlns="src/hs.o.lst" -c -fmessage-length=0 -MMD -MP -MF"src/hs.d" -MT"src/hs.d" -mHS -mbig-endian -mmpy-option=2 -g3 -gdwarf-2 -mbarrel-shifter -mcode-density -mnorm -mswap -mshift-assist -o "src/hs.o" "../src/hs.c"
Finished building: ../src/hs.c

Building target: hs.elf
Invoking: ARC Linux UcLibc GCC C Linker
arceb-buildroot-linux-uclibc-gcc -T"/home/yunluz/runtime-EclipseApplication/hs/lds/arcelf.lds" -nostartfiles -Wl,-Map,hs.map -mHS -mbig-endian -mmpy-option=2 -g3 -gdwarf-2 -mbarrel-shifter -mcode-density -mnorm -mswap -mshift-assist -o "hs.elf"  ./src/crt0.o ./src/hs.o
/opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: ERROR: Attempting to link /opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/lib/libgcc_s.so.1 with a binary hs.elf of different architecture
/opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: failed to merge target specific data of file /opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/lib/libgcc_s.so.1
/opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: ERROR: Attempting to link /opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/lib/libgcc_s.so.1 with a binary hs.elf of different architecture
/opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/bin/ld: failed to merge target specific data of file /opt/arc/gnu/arc_gnu_4.8-R3_prebuilt_uclibc_be_rhel_install/bin/../lib/gcc/arceb-buildroot-linux-uclibc/4.8.0/../../../../arceb-buildroot-linux-uclibc/lib/libgcc_s.so.1
collect2: error: ld returned 1 exit status
make: *** [hs.elf] Error 1

01:03:16 Build Finished (took 775ms)