wolfssl: Fix hostapd build with wolfssl 4.6.0

wolfssl: Fix hostapd build with wolfssl 4.6.0

This fixes the following build problem in hostapd:
mipsel-openwrt-linux-musl/bin/ld: /builder/shared-workdir/build/tmp/ccN4Wwer.ltrans7.ltrans.o: in function `crypto_ec_point_add':
<artificial>:(.text.crypto_ec_point_add+0x170): undefined reference to `ecc_projective_add_point'
mipsel-openwrt-linux-musl/bin/ld: <artificial>:(.text.crypto_ec_point_add+0x18c): undefined reference to `ecc_map'
mipsel-openwrt-linux-musl/bin/ld: /builder/shared-workdir/build/tmp/ccN4Wwer.ltrans7.ltrans.o: in function `crypto_ec_point_to_bin':
<artificial>:(.text.crypto_ec_point_to_bin+0x40): undefined reference to `ecc_map'

Fixes: ba40da9045f7 ("wolfssl: Update to v4.6.0-stable")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>