The ACGR register is at the offset of 0x1024, beyond the 4k originally
assigned to the MPMU range.

Link: https://lore.kernel.org/r/20200718205019.184927-5-lkundrak@v3.skSigned-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>