clk: sifive: fu540-prci: Declare static const variable 'prci_clk_fu540' where it's used

Fixes the following W=1 kernel build warning(s):

 drivers/clk/sifive/fu540-prci.h:16:35: warning: ‘prci_clk_fu540’ defined but not used [-Wunused-const-variable=]
 drivers/clk/sifive/fu540-prci.h:16:35: warning: ‘prci_clk_fu540’ defined but not used [-Wunused-const-variable=]

Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Pragnesh Patel <Pragnesh.patel@sifive.com>
Cc: Zong Li <zong.li@sifive.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210120093040.1719407-7-lee.jones@linaro.orgAcked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

drivers/clk/sifive/fu540-prci.h

@@ -13,9 +13,4 @@
 
 extern struct __prci_clock __prci_init_clocks_fu540[NUM_CLOCK_FU540];
 
-static const struct prci_clk_desc prci_clk_fu540 = {
-	.clks = __prci_init_clocks_fu540,
-	.num_clks = ARRAY_SIZE(__prci_init_clocks_fu540),
-};
-
 #endif /* __SIFIVE_CLK_FU540_PRCI_H */

drivers/clk/sifive/sifive-prci.c

@@ -12,6 +12,11 @@
 #include "fu540-prci.h"
 #include "fu740-prci.h"
 
+static const struct prci_clk_desc prci_clk_fu540 = {
+	.clks = __prci_init_clocks_fu540,
+	.num_clks = ARRAY_SIZE(__prci_init_clocks_fu540),
+};
+
 /*
  * Private functions
  */