cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems

cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems

Reported by kernel test bot from an ARM build:
drivers/cxl/core/region.c:3263:26: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]

On a 32bit system, resource_size_t is defined as 32bit long vs on a 64bit
system it is defined as 64bit long. Use %pa format to deal with
resource_size_t.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503010252.mIDhZ5kY-lkp@intel.com/
Fixes: 0ec9849b6333 ("acpi/hmat / cxl: Add extended linear cache support for CXL")
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20250228204739.3849309-1-dave.jiang@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>