msm: pcie: switch API for tuning EQ preset request vector configuration

Instead of using msm_pcie_write_mask, use msm_pcie_write_reg_field
which will shift the write value based on the mask.

Change-Id: Ie125655776d9ab0091d9ef813e1761126e920549
Signed-off-by: Tony Truong <truong@codeaurora.org>