ARM: dts: msm: Correct ION device tree errors on Kona

Correct ION device tree errors introduced as a part
of
'commit 5a1428b7 ("ARM: dts: msm: Fixes warnings
in kona device tree")'

Correct the heap id corresponding to the system heap
and the system secure heap in the ION device tree on Kona.

Change-Id: Ic75fa9fe1fd9bfe8fd1e06c3ef8aa4b4f72c64cc
Signed-off-by: Swathi Sridhar <swatsrid@codeaurora.org>