tools: selftests: riscv: Fix compile warnings in cbo

GCC prints a couple of format string warnings when compiling
the cbo test. Let's follow the recommendation in
Documentation/printk-formats.txt to fix these warnings.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231123185821.2272504-3-christoph.muellner@vrull.eu
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Author: cmuellner

tools/testing/selftests/riscv/hwprobe/cbo.c

@@ -97,7 +97,7 @@ static void test_zicboz(void *arg)
 	block_size = pair.value;
 	ksft_test_result(rc == 0 && pair.key == RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE &&
 			 is_power_of_2(block_size), "Zicboz block size\n");
-	ksft_print_msg("Zicboz block size: %ld\n", block_size);
+	ksft_print_msg("Zicboz block size: %llu\n", block_size);
 
 	illegal_insn = false;
 	cbo_zero(&mem[block_size]);
@@ -121,7 +121,7 @@ static void test_zicboz(void *arg)
 		for (j = 0; j < block_size; ++j) {
 			if (mem[i * block_size + j] != expected) {
 				ksft_test_result_fail("cbo.zero check\n");
-				ksft_print_msg("cbo.zero check: mem[%d] != 0x%x\n",
+				ksft_print_msg("cbo.zero check: mem[%llu] != 0x%x\n",
 					       i * block_size + j, expected);
 				return;
 			}
@@ -201,7 +201,7 @@ int main(int argc, char **argv)
 	pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0;
 	rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)&cpus, 0);
 	if (rc < 0)
-		ksft_exit_fail_msg("hwprobe() failed with %d\n", rc);
+		ksft_exit_fail_msg("hwprobe() failed with %ld\n", rc);
 	assert(rc == 0 && pair.key == RISCV_HWPROBE_KEY_IMA_EXT_0);
 
 	if (pair.value & RISCV_HWPROBE_EXT_ZICBOZ) {