tpm2_import: free exponent BIGNUM after RSA_generate_key_ex() call
tpm2_import: free exponent BIGNUM after RSA_generate_key_ex() call

The RSA_generate_key_ex() creates a duplicate of the exponent component
passed as an argument, so it can be freed just after the function call.

Signed-off-by: Javier Martinez Canillas <8fdf2abf85d34ea8f3f979ef25dc1f25d94aca29@redhat.com>

01org/tpm2.0-tools,martinezjavier/tpm2-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools,01org/tpm2.0-tools,martinezjavier/tpm2-tools