msm: 8974: rename copper to 8974

The official name for copper is MSM8974.
Switch to it.

Change-Id: Ifb241232111139912477bf7b5f2e9cf5d38d0f9e
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-pll.c b/arch/arm/mach-msm/clock-pll.c
index 49bb063..8c1f67e 100644
--- a/arch/arm/mach-msm/clock-pll.c
+++ b/arch/arm/mach-msm/clock-pll.c
@@ -248,7 +248,7 @@
 
 #define PLL_LOCKED_BIT BIT(16)
 
-int copper_pll_clk_enable(struct clk *c)
+int msm8974_pll_clk_enable(struct clk *c)
 {
 	unsigned long flags;
 	struct pll_clk *pll = to_pll_clk(c);