usb: phy: qusb: Update tune1 param from efuse register

Tune1 HSTX_TRIM parameter varies from part to part and needs to
be programmed using fused values. Update the code to read
the efuse register and update tune1 parameter. On previous
platforms this used to be tune2.

Change-Id: I7a2efa3c2409ba5dbb1ae9581738518b9457a971
Signed-off-by: Vamsi Krishna Samavedam <vskrishn@codeaurora.org>
Signed-off-by: Mayank Rana <mrana@codeaurora.org>