ANDROID: GKI: Fix firmware: smccc build error

In commit 0ca5de83 ("firmware: smccc: Fix use of uninitialised
results structure"), a unused variable was removed, but in the
android-specific changes in the function, the variable was still needed,
so it broke the build.  Fix this up by putting the variable back as it
is required and set it properly.

Fixes: 0ca5de83 ("firmware: smccc: Fix use of uninitialised results structure")
Change-Id: Icef4bcc0403f4f09fb7ca3a72346007af79f7f8e
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>