remoteproc: make sure we're parsing a 32bit firmware
remoteproc: make sure we're parsing a 32bit firmware

Make sure we're parsing a 32bit image, since we only support
the ELF32 binary format at this point.

This should prevent unexpected behavior with non 32bit binaries.

Signed-off-by: Ohad Ben-Cohen <f42ebdd520afb7505b40286b1d13fbb7281e5b96@wizery.com>
Cc: Grant Likely <9069e6f5a2b566e2674a0ba1e2bf39c12c195fad@secretlab.ca>
Cc: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Cc: Mark Grosen <626d0b6e003883ecfc89eb4c9c2ab324c1ff308c@ti.com>
Cc: Suman Anna <68636d6b0a4dfe1213ee9d7712e75a8cc339119f@ti.com>
Cc: Fernando Guzman Lugo <ce564f1db7746e165d007472e93c96c0f8f027cd@ti.com>
Cc: Rob Clark <7e09c9d3e96378bf549fc283fd6e1e5b7014cc33@ti.com>
Cc: Ludovic BARRE <7d00b576244a20da2a0f3436a00218e40cced604@stericsson.com>
Cc: Loic PALLARDY <c5fc3630e84ba083589c715116a290542c97f5bb@stericsson.com>
Cc: Omar Ramirez Luna <75108f4fedbbf960e2d357a652cba42b6b93f179@linaro.org>

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