LU-18176 idl: reserve OBD_CONNECT2_UPDATE_LAYOUT flags

LU-18176 idl: reserve OBD_CONNECT2_UPDATE_LAYOUT flags

Reserve some bits to be used in CSDC:
- OBD_CONNECT2_UPDATE_LAYOUT to negotiate new intent flag
- LAYOUT_INTENT_CHANGE to allow changing layout flags
- LAIF_INCOMPRESSIBLE to set LCME_FL_NOCOMPR flag in layout

Test-Parameters: trivial
Signed-off-by: Bobi Jam <bobijam@whamcloud.com>
Change-Id: Ifabeb6ce2669f9c88e1bba176b9ecc75e9b2b935
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56181
Reviewed-by: Artem Blagodarenko <ablagodarenko@ddn.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>