x86/boot/e820: Rename 'e820_map' variables to 'e820_array'

In line with the rename to 'struct e820_array', harmonize the naming of common e820
table variable names as well:

 e820          =>  e820_array
 e820_saved    =>  e820_array_saved
 e820_map      =>  e820_array
 initial_e820  =>  e820_array_init

This makes the variable names more consistent  and easier to grep for.

No change in functionality.

Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/kernel/kexec-bzimage64.c

@@ -100,14 +100,14 @@ static int setup_e820_entries(struct boot_params *params)
 {
 	unsigned int nr_e820_entries;
 
-	nr_e820_entries = e820_saved->nr_map;
+	nr_e820_entries = e820_array_saved->nr_map;
 
 	/* TODO: Pass entries more than E820MAX in bootparams setup data */
 	if (nr_e820_entries > E820MAX)
 		nr_e820_entries = E820MAX;
 
 	params->e820_entries = nr_e820_entries;
-	memcpy(&params->e820_map, &e820_saved->map,
+	memcpy(&params->e820_array, &e820_array_saved->map,
 	       nr_e820_entries * sizeof(struct e820_entry));
 
 	return 0;
@@ -233,10 +233,10 @@ setup_boot_parameters(struct kimage *image, struct boot_params *params,
 	nr_e820_entries = params->e820_entries;
 
 	for (i = 0; i < nr_e820_entries; i++) {
-		if (params->e820_map[i].type != E820_RAM)
+		if (params->e820_array[i].type != E820_RAM)
 			continue;
-		start = params->e820_map[i].addr;
-		end = params->e820_map[i].addr + params->e820_map[i].size - 1;
+		start = params->e820_array[i].addr;
+		end = params->e820_array[i].addr + params->e820_array[i].size - 1;
 
 		if ((start <= 0x100000) && end > 0x100000) {
 			mem_k = (end >> 10) - (0x100000 >> 10);