powerpc/Makefiles: Convert ifeq to ifdef where possible

Thu Aug 9 00:26:42 AEST 2018

On Mon, 2018-08-06 at 16:42:03 UTC, "Rodrigo R. Galvao" wrote:
> In Makefiles if we're testing a CONFIG_FOO symbol for equality with 'y'
> we can instead just use ifdef. The latter reads easily, so convert to
> it where possible.
> 
> Signed-off-by: Rodrigo R. Galvao <rosattig at linux.vnet.ibm.com>
> Reviewed-by: Mauro S. M. Rodrigues <maurosr at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/badf436f6fa5dc864d579d73fe7538

cheers