powerpc/vdso: Remove offset comment from 32bit vdso_arch_data

This offset was copy-pasted from the systemcfg structure.
It has no meaning for the 32bit VDSO.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-21-b64f0842d512@linutronix.de

Author: t-8ch

arch/powerpc/include/asm/vdso_datapage.h

@@ -92,7 +92,7 @@ struct vdso_arch_data {
  * And here is the simpler 32 bits version
  */
 struct vdso_arch_data {
-	__u64 tb_ticks_per_sec;		/* Timebase tics / sec		0x38 */
+	__u64 tb_ticks_per_sec;		/* Timebase tics / sec */
 	__u32 syscall_map[SYSCALL_MAP_SIZE]; /* Map of syscalls */
 	__u32 compat_syscall_map[0];	/* No compat syscalls on PPC32 */
 	struct vdso_data data[CS_BASES];