msm: kgsl: Fix upper bound check for iommu address

kgsl_iommu_addr_in_range() incorrectly checks the virtual address range,
fix this by updating upper bound condition.

Change-Id: I7e443c51be723b70b6367c8d9c75480b2762fe1c
Signed-off-by: Pankaj Gupta <quic_gpankaj@quicinc.com>