application: enable zicond optimize for crc16 and crcu16 in coremark

In order for zicond to be enabled and effective, GCC with optimized parameters is required.

example usage for rv32imafdc_zba_zbb_zbc_zbs_zicond riscv arch.

cd application/baremetal/benchmark/coremark/
make CORE=n900fd ARCH_EXT=_zba_zbb_zbc_zbs_zicond clean
make CORE=n900fd ARCH_EXT=_zba_zbb_zbc_zbs_zicond all

application/baremetal/benchmark/coremark/core_util.c

@@ -170,22 +170,41 @@ ee_u16 crcu8(ee_u8 data, ee_u16 crc)
     }
     return crc;
 }
+
+#if (defined(__riscv_zicond) && !defined(__clang__))
+#pragma GCC push_options
+#pragma GCC optimize("-fcode-hoisting")
+#pragma GCC optimize("-ftree-vrp")
+#endif
 ee_u16 crcu16(ee_u16 newval, ee_u16 crc)
 {
     crc = crcu8((ee_u8)(newval),        crc);
     crc = crcu8((ee_u8)((newval) >> 8),   crc);
     return crc;
 }
+#if (defined(__riscv_zicond) && !defined(__clang__))
+#pragma GCC pop_options
+#endif
+
 ee_u16 crcu32(ee_u32 newval, ee_u16 crc)
 {
     crc = crc16((ee_s16) newval,          crc);
     crc = crc16((ee_s16)(newval >> 16),    crc);
     return crc;
 }
+
+#if (defined(__riscv_zicond) && !defined(__clang__))
+#pragma GCC push_options
+#pragma GCC optimize("-fcode-hoisting")
+#pragma GCC optimize("-ftree-vrp")
+#endif
 ee_u16 crc16(ee_s16 newval, ee_u16 crc)
 {
     return crcu16((ee_u16)newval,       crc);
 }
+#if (defined(__riscv_zicond) && !defined(__clang__))
+#pragma GCC pop_options
+#endif
 
 ee_u8 check_data_types()
 {