spi: spi-msm-geni: Store the wrapper dev handle for LE VM also

This change uses correct wrapper dev for LE instead of bypassing.
If wrapper dev or internal members are NULL, it crashes during
register dump time due to some other error.
This change fixes a crash happening to due to NULL pointer access
while dumping the register using geni_se_dump_dbg_regs.

sample dump from I2C driver which is fixed in i2c:

[  278.999159] Call trace:
[  278.999165]  geni_se_dump_dbg_regs+0x98/0x2f0
[  278.999177]  geni_i2c_runtime_resume+0x2f4/0x4c8
[  278.999186]  pm_generic_runtime_resume+0x34/0x48
[  278.999193]  __rpm_callback+0x80/0x1a0
[  278.999198]  rpm_resume+0x4ec/0x720
[  278.999202]  __pm_runtime_resume+0x54/0x78
[  278.999211]  fts_trusted_touch_enable_store+0x1dc/0x8e0
[  278.999217]  dev_attr_store+0x40/0x58
[  278.999226]  sysfs_kf_write+0x50/0x68
[  278.999231]  kernfs_fop_write+0x150/0x1f8
[  278.999240]  __vfs_write+0x54/0x190
[  278.999247]  vfs_write+0xe4/0x1a0
[  278.999254]  __arm64_sys_pwrite64+0x80/0xc0
[  278.999263]  el0_svc_common+0x98/0x118
[  278.999270]  el0_svc_handler+0x7c/0x98
[  278.999277]  el0_svc+0x8/0xc
[  278.999286] Code: f94006a8 d0002800 9134b000 aa1603e1 (f9404d15).

Change-Id: Iecdb214452fc8232ee5aa3f803180f4c3a92affd
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>