parisc: Rename pte_needs_flush() to pte_needs_cache_flush() in cache.c

commit 52ce9406 upstream.

The local name used in cache.c conflicts the declaration in
include/asm-generic/tlb.h.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v5.12+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>