ARM: 8239/1: Introduce {set,clear}_pte_bit
ARM: 8239/1: Introduce {set,clear}_pte_bit

Introduce helper functions for pte_mk* functions and it would be
used to change individual bits in ptes at times.

Signed-off-by: Jungseung Lee <f439b29a58b762d53bfe0721c899ebd460d3253b@gmail.com>
Signed-off-by: Russell King <f6aa0246ff943bfa8602cdf60d40c481b38ed232@arm.linux.org.uk>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs