ARM: dts: Update memory cravout for msmzirc

Modem is still doing some size optimization which is not
complete yet, hence for first 8 weeks they need 10MB from
APPS. This change will give 10 MB to modem

Change-Id: I742d5e999b4ad87ba66218952100762d21cc3e8b
Signed-off-by: Smita Ghosh <smitag@codeaurora.org>