Documentation: Fix description format for powerpc RTAS ioctls

Fix the description format for the following build warnings:

"Documentation/userspace-api/ioctl/ioctl-number.rst:369:
ERROR: Malformed table. Text in column margin in table line 301.

0xB2  03-05 arch/powerpc/include/uapi/asm/papr-indices.h
powerpc/pseries indices API
                            <mailto:linuxppc-dev>
0xB2  06-07 arch/powerpc/include/uapi/asm/papr-platform-dump.h
powerpc/pseries Platform Dump API
                            <mailto:linuxppc-dev>
0xB2  08  arch/powerpc/include/uapi/asm/papr-physical-attestation.h
powerpc/pseries Physical Attestation API
                            <mailto:linuxppc-dev>"

Reported-by: Stephen Rothwell <[email protected]>
Signed-off-by: Haren Myneni <[email protected]>
Fixes: 43d869a ("powerpc/pseries: Define papr_indices_io_block for papr-indices ioctls")
Fixes: 8aa9efc ("powerpc/pseries: Add papr-platform-dump character driver for dump retrieval")
Fixes: 86900ab ("powerpc/pseries: Add a char driver for physical-attestation RTAS")
Tested-by: Venkat Rao Bagalkote <[email protected]>
Reviewed-by: Bagas Sanjaya <[email protected]>
Closes: https://lore.kernel.org/linux-next/[email protected]/
Signed-off-by: Madhavan Srinivasan <[email protected]>
Link: https://patch.msgid.link/[email protected]

Author: hmyneni

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -366,11 +366,11 @@ Code  Seq#    Include File                                           Comments
                                                                      <mailto:linuxppc-dev>
 0xB2  01-02  arch/powerpc/include/uapi/asm/papr-sysparm.h            powerpc/pseries system parameter API
                                                                      <mailto:linuxppc-dev>
-0xB2  03-05 arch/powerpc/include/uapi/asm/papr-indices.h             powerpc/pseries indices API
+0xB2  03-05  arch/powerpc/include/uapi/asm/papr-indices.h            powerpc/pseries indices API
                                                                      <mailto:linuxppc-dev>
-0xB2  06-07 arch/powerpc/include/uapi/asm/papr-platform-dump.h       powerpc/pseries Platform Dump API
+0xB2  06-07  arch/powerpc/include/uapi/asm/papr-platform-dump.h      powerpc/pseries Platform Dump API
                                                                      <mailto:linuxppc-dev>
-0xB2  08  arch/powerpc/include/uapi/asm/papr-physical-attestation.h  powerpc/pseries Physical Attestation API
+0xB2  08     powerpc/include/uapi/asm/papr-physical-attestation.h    powerpc/pseries Physical Attestation API
                                                                      <mailto:linuxppc-dev>
 0xB3  00     linux/mmc/ioctl.h
 0xB4  00-0F  linux/gpio.h                                            <mailto:[email protected]>