msm: kgsl: Fix compilation errors for 32bit kernel

This fixes below compilation errors for 32bit kernel
build.

kgsl.h: error: implicit declaration of function 'is_compat_task'
kgsl_compat.h: warning: declaration of 'struct kgsl_device' will
		not be visible outside of this function
adreno_compat.h:: warning: declaration of 'struct kgsL_device_getproperty'
		will not be visible outside of this function
adreno_a6xx.c:: undefined reference to `__aeabi_ldivmod'.

Change-Id: Ie2a710598c1e6dc13831d90e1c19d6a805c8588a
Signed-off-by: Deepak Kumar <dkumar@codeaurora.org>