powerpc/t4qds: Fix disabling remote I2C connection

Only clear IRE bit in qixis brdcfg5 register and keep other bits
unchanged.

Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2 files changed