binfmt_elf: Correct `arch_check_elf's description

Correct `arch_check_elf's description, mistakenly copied and pasted from
`arch_elf_pt_proc'.

Signed-off-by: Maciej W. Rozycki <macro@imgtec.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index e6572a6..b0b9a77 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -487,7 +487,7 @@
 }
 
 /**
- * arch_check_elf() - check a PT_LOPROC..PT_HIPROC ELF program header
+ * arch_check_elf() - check an ELF executable
  * @ehdr:	The main ELF header
  * @has_interp:	True if the ELF has an interpreter, else false.
  * @state:	Architecture-specific state preserved throughout the process