ARM: dts: msm: Correct bus qos configuration for msm8x26

correct the qos setting of masters on NOC according
to latest recommendations.

CRs-Fixed: 555685
Change-Id: I22214f77e78899aa6f9291cc9b1225efcf02d08e
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>