ARM: pxa: fix pxa_ssp_* declarations
ARM: pxa: fix pxa_ssp_* declarations

The functions declared in include/linux/pxa2xx_ssp.h are
defined in plat-pxa/ssp.c, which can also be built for
PLAT_MMP, but may be disabled there. This can lead to
both unresolved symbols at link time and to duplicate
symbols at compile time for random configurations.

Changing the #ifdef in the header file to match the
Kconfig symbol that decides if the file is built solves
both problems.

Signed-off-by: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Cc: Eric Miao <60e376623d7bcedd53f4c51cbb2c060fb40a4887@gmail.com>
Cc: Russell King <ba324ca7b1c77fc20bb970d5aff6eea9377918a5@arm.linux.org.uk>
Cc: Haojian Zhuang <979139d45d262f0480136b0da512e0afa0fe79d3@gmail.com>
Cc: Daniel Mack <70806a71956ed8873ecff8522779dae1401a1b4a@gmail.com>

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