wlan: update the exist condition of cfg.ini file.

In some cases, cfg.ini file is there but the size is 0. So we need
to check the size also.

Change-Id: Ic4ca9ecb050193d9be6c8e754894394ce508a3ba
CRs-Fixed: 533380
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644""
Merge "Merge "Merge "device/qcom/common: Modify permissions of wcd9xxx to 644"""
Merge "wlan: update the exist condition of cfg.ini file."
Merge "Merge "wlan: update the exist condition of cfg.ini file.""
librecovery_updater_msm: Properly free allocated memory

Free updater ReadArgs allocated memory.

CRs-Fixed: 553376

Change-Id: Id92723a51a82830b8ba845df96a246a5708c7c3c
Merge "Merge "Merge "wlan: update the exist condition of cfg.ini file."""
Merge "librecovery_updater_msm: Properly free allocated memory"
Merge "Merge "librecovery_updater_msm: Properly free allocated memory""
Merge "Merge "Merge "librecovery_updater_msm: Properly free allocated memory"""