ACPI: CPPC: Replace ternary operator with umax()

Replace ternary operator with umax() in cppc_find_dmi_mhz().
Signed-off-by: Prabhakar Pujeri <prabhakar.pujeri@gmail.com>
[ rjw: Subject and changelog edits ]
Link: https://patch.msgid.link/20240626130941.1527127-2-prabhakar.pujeri@gmail.comSigned-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/cppc_acpi.c

@@ -1839,7 +1839,7 @@ static void cppc_find_dmi_mhz(const struct dmi_header *dm, void *private)
 	    dm->length >= DMI_ENTRY_PROCESSOR_MIN_LENGTH) {
 		u16 val = (u16)get_unaligned((const u16 *)
 				(dmi_data + DMI_PROCESSOR_MAX_SPEED));
-		*mhz = val > *mhz ? val : *mhz;
+		*mhz = umax(val, *mhz);
 	}
 }