liblzma: Name sizeof size_t macro consistently with upstream

Utilities/cmliblzma/CMakeLists.txt

@@ -95,7 +95,7 @@ CHECK_TYPE_SIZE("unsigned short" SIZE_OF_UNSIGNED_SHORT)
 CHECK_TYPE_SIZE("unsigned" SIZE_OF_UNSIGNED)
 CHECK_TYPE_SIZE("unsigned long" SIZE_OF_UNSIGNED_LONG)
 CHECK_TYPE_SIZE("unsigned long long" SIZE_OF_UNSIGNED_LONG_LONG)
-CHECK_TYPE_SIZE("size_t" SIZE_OF_SIZE_T)
+CHECK_TYPE_SIZE("size_t" SIZEOF_SIZE_T)
 
 CHECK_TYPE_SIZE("__int64" __INT64)
 CHECK_TYPE_SIZE("unsigned __int64" UNSIGNED___INT64)

Utilities/cmliblzma/common/sysdefs.h

@@ -124,9 +124,9 @@
 
 // The code currently assumes that size_t is either 32-bit or 64-bit.
 #ifndef SIZE_MAX
-#	if SIZE_OF_SIZE_T == 4
+#	if SIZEOF_SIZE_T == 4
 #		define SIZE_MAX UINT32_MAX
-#	elif SIZE_OF_SIZE_T == 8
+#	elif SIZEOF_SIZE_T == 8
 #		define SIZE_MAX UINT64_MAX
 #	else
 #		error size_t is not 32-bit or 64-bit

Utilities/cmliblzma/config.h.in

@@ -29,7 +29,7 @@
 @SIZE_OF_UNSIGNED_CODE@
 @SIZE_OF_UNSIGNED_LONG_CODE@
 @SIZE_OF_UNSIGNED_LONG_LONG_CODE@
-@SIZE_OF_SIZE_T_CODE@
+@SIZEOF_SIZE_T_CODE@
 
 /*
  * If we lack int64_t, define it to the first of __int64, int, long, and long long