ipq807x: Increase size of  CONFIG_SYS_MALLOC_LEN

UBI is memory greedy and needs more malloc area
while accessing  above 256M of Flash.

Change-Id: I2521eedaf483e104bcb37886003085ed74c8bf0c
Signed-off-by: Venkat Raju Sana <vrsana@codeaurora.org>
1 file changed