MIPS: add readl/write_be accessors
MIPS: add readl/write_be accessors

MIPS currently lacks the readl_be and writel_be accessors
which are required by BCM63xx for OHCI and EHCI support.
Let's define them globally for MIPS. This also fixes the
compilation of the bcm63xx defconfig against USB.

Signed-off-by: Florian Fainelli <38e15eb16946e3ee29d10b339260d9b7fa2fa48b@freebox.fr>
Cc: Geert Uytterhoeven <0da414d9d963da4039c2a0525b1844228075aa58@linux-m68k.org>
Cc: Thomas Bogendoerfer <09d64c177c298bae139005e2cedd9df738b0516d@alpha.franken.de>
Cc: 562397917b9a8bf316569a848858b12fb417723f@linux-mips.org
Cc: Maxime Bizon <f76ce1f46e3863a1d2d6b7e849385982e002f716@freebox.fr>
Patchwork: http://patchwork.linux-mips.org/patch/793/
Signed-off-by: Ralf Baechle <92f48d309cda194c8eda36aa8f9ae28c488fa208@linux-mips.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas