powerpc/44x: Update Warp defconfig

* Enable GPIO LEDS and LED triggers
* Move to SLUB
* Enable HOTPLUG
* Enable timestamps on printks
* Enable UBIFS
* Enable in-kernel config

Signed-off-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
1 file changed