treewide: fix typo of "suppport" in various comments

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

arch/ia64/kvm/kvm-ia64.c

@@ -1,5 +1,5 @@
 /*
- * kvm_ia64.c: Basic KVM suppport On Itanium series processors
+ * kvm_ia64.c: Basic KVM support On Itanium series processors
  *
  *
  * 	Copyright (C) 2007, Intel Corporation.