src/include: Add parenthesis around macros

Fix the following error found by checkpatch.pl:

ERROR: Macros with complex values should be enclosed in parentheses

False positives are detected for attribute macros.  An example is:

ERROR: Macros with complex values should be enclosed in parentheses
+#define BOOT_STATE_INIT_ATTR  __attribute__ ((used, section
(".bs_init")))

False positive also generated for macros for linker script files.  An
example is:

ERROR: Macros with complex values should be enclosed in parentheses
+#define CBFS_CACHE(addr, size) \
+	REGION(cbfs_cache, addr, size, 4) \
+	ALIAS_REGION(cbfs_cache, preram_cbfs_cache) \
+	ALIAS_REGION(cbfs_cache, postram_cbfs_cache)

False positives generated for assembly code macros.  An example is:

ERROR: Macros with complex values should be enclosed in parentheses
+#define DECLARE_OPTIONAL_REGION(name) asm (".weak _" #name ", _e" #name
)

False positive detected when macro includes multiple comma separated
values.  The following code is from src/include/device/azalia_device.h:

#define AZALIA_SUBVENDOR(codec, val)		    \
	(((codec) << 28) | (0x01720 << 8) | ((val) & 0xff)),	\
	(((codec) << 28) | (0x01721 << 8) | (((val) >> 8) & 0xff)), \
	(((codec) << 28) | (0x01722 << 8) | (((val) >> 16) & 0xff)), \
	(((codec) << 28) | (0x01723 << 8) | (((val) >> 24) & 0xff))

TEST=Build and run on Galileo Gen2

Change-Id: I6e3b6950738e6906851a172ba3a22e3d5af1e35d
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18649
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/include/cpu/amd/lxdef.h b/src/include/cpu/amd/lxdef.h
index 19b1efa..4865bea 100644
--- a/src/include/cpu/amd/lxdef.h
+++ b/src/include/cpu/amd/lxdef.h
@@ -59,7 +59,7 @@
 #define GL1_AES				6
 
 
-#define MSR_GLIU0		(GL0_GLIU0 << 29) + (1 << 28) /* 1000xxxx, To get on GeodeLink one bit has to be set */
+#define MSR_GLIU0		((GL0_GLIU0 << 29) + (1 << 28)) /* 1000xxxx, To get on GeodeLink one bit has to be set */
 #define	MSR_MC				(GL0_MC		<< 29)	/* 2000xxxx */
 #define	MSR_GLIU1			(GL0_GLIU1	<< 29)	/* 4000xxxx */
 #define MSR_CPU			(GL0_CPU	<< 29)	/* 0000xxxx this is not used for BIOS since code executing on CPU doesn't need to be routed*/