power: qpnp-charger: fix SMBB type detection
power: qpnp-charger: fix SMBB type detection

Only assign the SMBCL to the type property if
it has not yet been asigned.

Change-Id: Ie0c90d89970a1becf489b6a97dcc6dbcd9a40103
Signed-off-by: David Keitel <bd5c00b7233f7e9d1df99d90a21c081aa6291657@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas