selftest/mm: fix typo in virtual_address_range

The function name should be *hint* address, so correct it.

Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Chunyan Zhang <[e-mail]>
Reviewed-by: Charlie Jenkins <[e-mail]>
Acked-by: Palmer Dabbelt <[e-mail]>
Cc: Alexandre Ghiti <[e-mail]>
Cc: Paul Walmsley <[e-mail]>
Cc: Shuah Khan <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>

tools/testing/selftests/mm/virtual_address_range.c

···
 #define NR_CHUNKS_HIGH  NR_CHUNKS_384TB
 #endif
 
-static char *hind_addr(void)
+static char *hint_addr(void)
 {
 	int bits = HIGH_ADDR_SHIFT + rand() % (63 - HIGH_ADDR_SHIFT);
 
···
 	}
 
 	for (i = 0; i < NR_CHUNKS_HIGH; i++) {
-		hint = hind_addr();
+		hint = hint_addr();
 		hptr[i] = mmap(hint, MAP_CHUNK_SIZE, PROT_READ | PROT_WRITE,
 			       MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);