powerpc/configs/6xx: Clean up duplicate CONFIG_EXT4 values

We had two values for CONFIG_EXT4, =m and =y, just use =y.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2017-08-23 15:37:57 +10:00
commit 533141ae0e