[POWERPC] 85xx: Enable CONFIG_SERIAL_8250_SHARE_IRQ
[POWERPC] 85xx: Enable CONFIG_SERIAL_8250_SHARE_IRQ

On chip 8250 UARTs share an interrupts on existing 85xx processors.

Signed-off-by: Kumar Gala <383ef5577c6e1178b93f59ec8d0936f76d2a98c4@kernel.crashing.org>

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