Pull Microblaze updates from Michal Simek:

 - extend DTB space

 - defconfig update

 - clean up rescheduling logic

 - enable SPARSE_IRQ

* tag 'microblaze-v5.5-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Increase max dtb size to 64K from 32K
  microblaze: Enable SPARSE_IRQ
  microblaze: defconfig: Enable devtmps and tmpfs
  microblaze: entry: Remove unneeded need_resched() loop