leds: convert LT3593 LED driver to devm_kzalloc()
leds: convert LT3593 LED driver to devm_kzalloc()

Cc: Daniel Mack <3d0f3b9ddcacec30c4008c5e030e6c13a478cb4f@caiaq.de>
Signed-off-by: Bryan Wu <465f0e91e61585f5bc1128e7fe63296c33a56926@canonical.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas