misc: tspp: Vote for the CX rail to workaround a HW bug

On the MSM8974V2, there is a hardware bug that requires the TSPP
driver to elevate the voltage on the CX rail before enabling the
TSIF clocks.

CRs-Fixed: 460557
Change-Id: I6a1bb0db3af86fba210dcaaa7b4b0a17cdd3d6a9
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8960.c b/arch/arm/mach-msm/board-8960.c
index 5d96389..cb88cdc 100644
--- a/arch/arm/mach-msm/board-8960.c
+++ b/arch/arm/mach-msm/board-8960.c
@@ -1308,6 +1308,7 @@
 	.gpios = tsif_gpios,
 	.tsif_pclk = "tsif_pclk",
 	.tsif_ref_clk = "tsif_ref_clk",
+	.tsif_vreg_present = 0,
 };
 
 static struct platform_device msm_device_tspp = {