msm: camera: Fix for avoiding double free in EEPROM

Corrected the return value when parse and reading
EEPROM memory map failure happens, thus avoiding
the double free of the memory map information.

Change-Id: I5f109334d84deece9d0779b47036ec30a27787a7
Signed-off-by: Sureshnaidu Laveti <lsuresh@codeaurora.org>