add-vmcore: add a prefix "VMCOREINFO_" to the vmcoreinfo macros

Add a prefix "VMCOREINFO_" to the vmcoreinfo macros.  Old vmcoreinfo macros
were defined as generic names SYMBOL/SIZE/OFFSET /LENGTH/CONFIG, and it is
impossible to grep for them.  So these names should be changed.  This
discussion is the following:
http://www.ussg.iu.edu/hypermail/linux/kernel/0709.1/0415.html

Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/x86/kernel/machine_kexec_32.c

@@ -174,11 +174,11 @@ early_param("crashkernel", parse_crashkernel);
 void arch_crash_save_vmcoreinfo(void)
 {
 #ifdef CONFIG_ARCH_DISCONTIGMEM_ENABLE
-	SYMBOL(node_data);
-	LENGTH(node_data, MAX_NUMNODES);
+	VMCOREINFO_SYMBOL(node_data);
+	VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
 #endif
 #ifdef CONFIG_X86_PAE
-	CONFIG(X86_PAE);
+	VMCOREINFO_CONFIG(X86_PAE);
 #endif
 }
 

arch/x86/kernel/machine_kexec_64.c

@@ -261,8 +261,8 @@ early_param("crashkernel", setup_crashkernel);
 void arch_crash_save_vmcoreinfo(void)
 {
 #ifdef CONFIG_ARCH_DISCONTIGMEM_ENABLE
-	SYMBOL(node_data);
-	LENGTH(node_data, MAX_NUMNODES);
+	VMCOREINFO_SYMBOL(node_data);
+	VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
 #endif
 }