microblaze: heartbeat: fix missing prom.h include

Since commit 96f0e6fcc9 ("microblaze: remove redundant early_printk
support") prom.h was removed and one instance in heartbeat.c remained.
Include of.h as it is the actual header needed.

Fixes: 96f0e6fcc9 ("microblaze: remove redundant early_printk support")
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Rob Herring 2018-06-11 08:58:36 -06:00 • committed by Michal Simek
commit 71ab91157e