msm: clock-8226: Add sleep clock for USB 2.0 PHY

USB 2.0 PHY is provided sleep clock. Add USB otg
device name and rename sleep_a_clk to sleep_clk to
allow USB driver to get sleep clock handle and vote
for the same.

Remove ref_clk entry from clock table as it is not
available with USB PHY on this platform. Hence it is
unused entry for this platform.

CRs-Fixed: 518359
Change-Id: I1c6e2eb2a281da9dc2bb420673d06abefbff7507
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-8226.c b/arch/arm/mach-msm/clock-8226.c
index cf6c23f..383af54 100644
--- a/arch/arm/mach-msm/clock-8226.c
+++ b/arch/arm/mach-msm/clock-8226.c
@@ -3251,6 +3251,7 @@
 	CLK_LOOKUP("xo",                 cxo_otg_clk.c, "f9a55000.usb"),
 	CLK_LOOKUP("iface_clk",   gcc_usb_hs_ahb_clk.c, "f9a55000.usb"),
 	CLK_LOOKUP("core_clk", gcc_usb_hs_system_clk.c, "f9a55000.usb"),
+	CLK_LOOKUP("sleep_clk", gcc_usb2a_phy_sleep_clk.c, "f9a55000.usb"),
 
 	/* SPS CLOCKS */
 	CLK_LOOKUP("dfab_clk",            pnoc_sps_clk.c, "f9984000.qcom,sps"),
@@ -3309,10 +3310,6 @@
 	CLK_LOOKUP("iface_clk", gcc_sdcc3_ahb_clk.c, "msm_sdcc.3"),
 	CLK_LOOKUP("core_clk", gcc_sdcc3_apps_clk.c, "msm_sdcc.3"),
 
-	CLK_LOOKUP("sleep_a_clk", gcc_usb2a_phy_sleep_clk.c, "msm_dwc3"),
-	CLK_LOOKUP("ref_clk", diff_clk.c, "msm_dwc3"),
-
-
 	CLK_LOOKUP("bus_clk", pnoc_clk.c, ""),
 	CLK_LOOKUP("bus_clk", pnoc_a_clk.c, ""),
 	CLK_LOOKUP("bus_clk", snoc_clk.c, ""),