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>

src/include/cpu/amd/gx2def.h

@@ -78,7 +78,7 @@
 #define	GL1_PCI		4
 #define	GL1_FG		5
 
-#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)			/* 6000xxxx - this is not used for BIOS since code executing on CPU doesn't need to be routed */
@@ -86,9 +86,9 @@
 #define	MSR_GP		(GL0_GP		<< 29)			/* A000xxxx */
 #define	MSR_DF		(GL0_DF		<< 29)			/* C000xxxx */
 
-#define	MSR_GLCP	(GL1_GLCP << 26) + MSR_GLIU1		/* 4C00xxxx */
-#define	MSR_PCI		(GL1_PCI << 26) + MSR_GLIU1		/* 5000xxxx */
-#define	MSR_FG		(GL1_FG << 26) + MSR_GLIU1		/* 5400xxxx */
+#define	MSR_GLCP	((GL1_GLCP << 26) + MSR_GLIU1)		/* 4C00xxxx */
+#define	MSR_PCI		((GL1_PCI << 26) + MSR_GLIU1)		/* 5000xxxx */
+#define	MSR_FG		((GL1_FG << 26) + MSR_GLIU1)		/* 5400xxxx */
 
 /* GeodeLink Interface Unit 0 (GLIU0) port0 */
 #define	GLIU0_GLD_MSR_CAP		(MSR_GLIU0 + 0x2000)

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*/

src/include/cpu/amd/sc520.h

@@ -10,11 +10,11 @@ struct parreg {
 	unsigned long reg[16];
 };
 
-#define PARREG (struct parreg *)0xfffef088
+#define PARREG ((struct parreg *)0xfffef088)
 //static volatile struct parreg *par = PARREG;
 
 
-#define MMCRPIC (struct mmcrpic *) 0xfffefd00
+#define MMCRPIC ((struct mmcrpic *) 0xfffefd00)
 //static volatile struct mmcrpic *pic = MMCRPIC;
 
 #define M_GINT_MODE     1
@@ -308,4 +308,4 @@ struct mmcr {
 };
 
 
-#define MMCRDEFAULT (struct mmcr *) 0xfffef000
+#define MMCRDEFAULT ((struct mmcr *) 0xfffef000)