ARM: dts: msm: Add dp dm interrupts for SM6150

Since SM6150 uses PDC interrupts, add dp dm interrupts
instead of hs_phy_irq. This change modifies the voltage
range for vdd according to the power grid, updates the
clock frequency and tx fifo size for secondary USB
controller. Since there is no PMIC support on RUMI,
delete extcon device node from rumi dts and change the
dr_mode to otg.

Change-Id: I6996ce1abd8fe5e398f265ef2aab15faf95242f0
Signed-off-by: Pratham Pratap <prathampratap@codeaurora.org>