powerpc/crypto: don't build aes-gcm-p10 by default

None of the other accelerated crypto modules are built by default.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/40d9c7ebe82c9a9d4ace542ac433753d2f22c6a0.1689007370.git.osandov@osandov.com

arch/powerpc/crypto/Kconfig

@@ -101,7 +101,6 @@ config CRYPTO_AES_GCM_P10
 	select CRYPTO_ALGAPI
 	select CRYPTO_AEAD
 	select CRYPTO_SKCIPHER
-	default m
 	help
 	  AEAD cipher: AES cipher algorithms (FIPS-197)
 	  GCM (Galois/Counter Mode) authenticated encryption mode (NIST SP800-38D)