arch/x86: rename X64 references to Intel64

Intel's X86-64 implementation is officially "Intel64", so follow suit.

Signed-off-by: Charles E. Youse <charles.youse@intel.com>

arch/x86/CMakeLists.txt

@@ -2,7 +2,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 if(CONFIG_X86_LONGMODE)
-  include(x64.cmake)
+  include(intel64.cmake)
 else()
   include(ia32.cmake)
 endif()

arch/x86/Kconfig

@@ -1,10 +1,8 @@
 # Kconfig - x86 general configuration options
-
 #
 # Copyright (c) 2014-2015 Wind River Systems, Inc.
-#
 # SPDX-License-Identifier: Apache-2.0
-#
+
 menu "X86 Architecture Options"
 	depends on X86
 
@@ -39,7 +37,7 @@ config CPU_APOLLO_LAKE
 	  This option signifies the use of a CPU from the Apollo Lake family.
 
 #
-# Configuration common to both IA32 and X64 sub-architectures.
+# Configuration common to both IA32 and Intel64 sub-architectures.
 #
 
 config X86_LONGMODE
@@ -120,6 +118,6 @@ config X86_VERY_EARLY_CONSOLE
 	  tree. This mini-driver assumes I/O to the UART is done via ports.
 
 source "arch/x86/core/Kconfig.ia32"
-source "arch/x86/core/Kconfig.x64"
+source "arch/x86/core/Kconfig.intel64"
 
 endmenu

arch/x86/core/CMakeLists.txt

@@ -15,7 +15,7 @@ zephyr_library_sources_ifdef(CONFIG_X86_MULTIBOOT multiboot.c)
 zephyr_library_sources_ifdef(CONFIG_X86_VERY_EARLY_CONSOLE early_serial.c)
 
 if(CONFIG_X86_LONGMODE)
-  include(x64.cmake)
+  include(intel64.cmake)
 else()
   include(ia32.cmake)
 endif()

arch/x86/core/Kconfig.ia32

@@ -2,7 +2,6 @@
 #
 # Copyright (c) 2019 Intel Corp.
 # SPDX-License-Identifier: Apache-2.0
-#
 
 if !X86_LONGMODE
 

arch/x86/core/Kconfig.intel64

@@ -1,8 +1,7 @@
-# Kconfig.x64 - X64-specific X86 subarchitecture options
+# Kconfig.intel64 - Intel64-specific X86 subarchitecture options
 #
 # Copyright (c) 2019 Intel Corp.
 # SPDX-License-Identifier: Apache-2.0
-#
 
 if X86_LONGMODE
 

arch/x86/intel64.cmake

@@ -1,4 +1,4 @@
 # Copyright (c) 2019 Intel Corp.
 # SPDX-License-Identifier: Apache-2.0
 
-message(FATAL_ERROR "nice try, no x64 support yet")
+message(FATAL_ERROR "nice try, no Intel64 support yet")