clk: rockchip: Fix -Wunused-const-variable in rv1108 clk driver

Clang produces the following warning

drivers/clk/rockchip/clk-rv1108.c:125:7: warning: unused variable
'mux_pll_src_3plls_p' [-Wunused-const-variable]
PNAME(mux_pll_src_3plls_p)      = { "apll", "gpll", "dpll" };

Looks like this variable was never used. Deleting it to remove the
warning.

Cc: clang-built-linux@googlegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/524Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk-rv1108.c

@@ -122,7 +122,6 @@ PNAME(mux_usb480m_pre_p)	= { "usbphy", "xin24m" };
 PNAME(mux_hdmiphy_phy_p)	= { "hdmiphy", "xin24m" };
 PNAME(mux_dclk_hdmiphy_pre_p)	= { "dclk_hdmiphy_src_gpll", "dclk_hdmiphy_src_dpll" };
 PNAME(mux_pll_src_4plls_p)	= { "dpll", "gpll", "hdmiphy", "usb480m" };
-PNAME(mux_pll_src_3plls_p)	= { "apll", "gpll", "dpll" };
 PNAME(mux_pll_src_2plls_p)	= { "dpll", "gpll" };
 PNAME(mux_pll_src_apll_gpll_p)	= { "apll", "gpll" };
 PNAME(mux_aclk_peri_src_p)	= { "aclk_peri_src_gpll", "aclk_peri_src_dpll" };