ARM: at91/sama5d34ek.dts: remove not needed compatibility string
ARM: at91/sama5d34ek.dts: remove not needed compatibility string

"atmel,sama5ek" compatibility sting does not correspond to a
useful board configuration. This d34ek.dts is the only sama5d3
.dts file affected.

Reported-by: Josh Wu <5d315a13f7549d1ecf8e62305448b567ef831df9@atmel.com>
Signed-off-by: Nicolas Ferre <45b517be0e5ec6dc3a39715767c1d18e090d39b4@atmel.com>

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