Fix bugprone-macro-parentheses warnings

Bug: 150783705
Test: WITH_TIDY=1 make
Change-Id: If47b7adaa5f3ba3c518fb0be48f0ffdc81d204b2
diff --git a/libc/platform/bionic/tls_defines.h b/libc/platform/bionic/tls_defines.h
index 92f707a..78099b3 100644
--- a/libc/platform/bionic/tls_defines.h
+++ b/libc/platform/bionic/tls_defines.h
@@ -80,8 +80,8 @@
 // [1] "Addenda to, and Errata in, the ABI for the ARM Architecture". Section 3.
 // http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045e/IHI0045E_ABI_addenda.pdf
 
-#define MIN_TLS_SLOT              -1 // update this value when reserving a slot
-#define TLS_SLOT_BIONIC_TLS       -1
+#define MIN_TLS_SLOT            (-1) // update this value when reserving a slot
+#define TLS_SLOT_BIONIC_TLS     (-1)
 #define TLS_SLOT_DTV              0
 #define TLS_SLOT_THREAD_ID        1
 #define TLS_SLOT_APP              2 // was historically used for errno