Use "%pa" format specifier for resource_size_t to avoid a compiler
printk format warning.

../arch/powerpc/platforms/512x/clock-commonclk.c: In function 'mpc5121_clk_provide_backwards_compat':
../arch/powerpc/platforms/512x/clock-commonclk.c:989:44: error: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' {aka 'long long unsigned int'} [-Werror=format=]
  989 |         snprintf(devname, sizeof(devname), "%08x.%s", res.start, np->name); \
      |                                            ^~~~~~~~~  ~~~~~~~~~
      |                                                          |
      |                                                          resource_size_t {aka long long unsigned int}

Prevents 24 such warnings.

Fixes: 01f25c371658 ("clk: mpc512x: add backwards compat to the CCF code")
Signed-off-by: Randy Dunlap <redacted>
Cc: Gerhard Sittig <redacted>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <redacted>
---
 arch/powerpc/platforms/512x/clock-commonclk.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/arch/powerpc/platforms/512x/clock-commonclk.c b/arch/powerpc/platforms/512x/clock-commonclk.c

--- a/arch/powerpc/platforms/512x/clock-commonclk.c
+++ b/arch/powerpc/platforms/512x/clock-commonclk.c

@@ -986,7 +986,7 @@ static void __init mpc5121_clk_provide_m
 
 #define NODE_PREP do { \
 	of_address_to_resource(np, 0, &res); \
-	snprintf(devname, sizeof(devname), "%08x.%s", res.start, np->name); \
+	snprintf(devname, sizeof(devname), "%pa.%s", &res.start, np->name); \
 } while (0)
 
 #define NODE_CHK(clkname, clkitem, regnode, regflag) do { \