USB: phy: msm: Check for PHY reset handle also

Currently reset APIs are checking only for phy_reset_clk, which may not
be present if it is only reset only clock. Hence check for PHY reset
handle as well to allow resetting PHY.

Change-Id: Iff8f254dac0e0bc27aa7ba1530d133cb0e2df708
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>