tcg-sparc: Fix parenthesis warning

error: suggest parentheses around comparison in operand of ‘&’ [-Werror=parentheses]
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

tcg/sparc/tcg-target.h

@@ -153,7 +153,7 @@ typedef enum {
 static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
 {
     uintptr_t p;
-    for (p = start & -8; p < (stop + 7) & -8; p += 8) {
+    for (p = start & -8; p < ((stop + 7) & -8); p += 8) {
         __asm__ __volatile__("flush\t%0" : : "r" (p));
     }
 }