msm: kgsl: Fix DMA API warning while dma_buf_map_attachment()

The dma_get_max_seg_size() returns a default value of 64k when dma_parms
are not allocated. When CONFIG_DMA_API_DEBUG_SG is enabled and the
requested size is more 64k, it triggers a warning as below.

[   25.468427] c6    754 kgsl kgsl-3d0: DMA-API: mapping sg segment longer than device claims to support [len=2097152] [max=65536]
[   25.480236] c6    754 WARNING: CPU: 6 PID: 754 at kernel/dma/debug.c:1302
[   25.497971] c6    754 Kernel panic - not syncing: panic_on_warn set ...
[   25.714532] c6    754 Call trace:
[   25.717938] c6    754  dump_backtrace+0x0/0x200
[   25.722598] c6    754  dump_stack+0xb8/0xf0
[   25.726897] c6    754  panic+0x160/0x44c
[   25.730934] c6    754  trace_raw_output_cpuhp_multi_enter+0x0/0xf4
[   25.737284] c6    754  report_bug+0x114/0x1b8
[   25.741756] c6    754  bug_handler+0x28/0xa0
[   25.746146] c6    754  brk_handler+0xac/0x1d0
[   25.750622] c6    754  do_debug_exception+0x88/0x188
[   25.755722] c6    754  el1_dbg+0x18/0xa8
[   25.759757] c6    754  debug_dma_map_sg+0x1e4/0x694
[   25.764768] c6    754  ion_map_dma_buf+0x318/0x428
[   25.769693] c6    754  dma_buf_map_attachment+0x68/0xbc
[   25.775063] c6    754  kgsl_setup_dma_buf+0xec/0x3b0
[   25.780160] c6    754  kgsl_ioctl_gpuobj_import+0x498/0x914
[   25.785879] c6    754  kgsl_ioctl_helper+0x11c/0x14c
[   25.790983] c6    754  kgsl_ioctl+0x30/0xa8
[   25.795283] c6    754  do_vfs_ioctl+0x66c/0xa14
[   25.799941] c6    754  __arm64_sys_ioctl+0x7c/0xb0
[   25.804865] c6    754  el0_svc_common+0x98/0x1d8
[   25.809609] c6    754  el0_svc_handler+0x5c/0x64
[   25.813205] c5      1 F2FS-fs (sda19): Start checkpoint disabled!
[   25.814359] c6    754  el0_svc+0x8/0xc

This warning can be fixed by allocating the dma_parms and setting the
max_segment_size.

Change-Id: I721858eadbe3588b4f5be0a0a73c428869c8e5de
Signed-off-by: Harshitha Sai Neelati <hsaine@codeaurora.org>