MIPS: ath79: Increase max memory limit to 256MByte
MIPS: ath79: Increase max memory limit to 256MByte

At least QCA955x can handle up to 256MBytes.

Signed-off-by: Helmut Schaa <b93afca131f86f2653331097f5dcdcaaa5682625@googlemail.com>
Cc: 562397917b9a8bf316569a848858b12fb417723f@linux-mips.org
Cc: Gabor Juhos <0b85b0feb94c9a44e8676965f48a70291ba74edb@openwrt.org>
Cc: Helmut Schaa <b93afca131f86f2653331097f5dcdcaaa5682625@googlemail.com>
Patchwork: https://patchwork.linux-mips.org/patch/8738/
Signed-off-by: Ralf Baechle <92f48d309cda194c8eda36aa8f9ae28c488fa208@linux-mips.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs