CMAKE: try to fix curl

[Megamouse]

No description provided.

[oltolm]

This change breaks the build that I fixed in another commit.

[build] C:\msys64\clang64\bin\clang.exe -DBUILDING_LIBCURL -DCURL_HIDDEN_SYMBOLS -DHAVE_CONFIG_H -DUNICODE -D_DEBUG -D_UNICODE -IC:/src/rpcs3/3rdparty/curl/curl/include -IE:/build-rpcs3-clang/3rdparty/curl/curl/lib/../include -IC:/src/rpcs3/3rdparty/curl/curl/lib/.. -IC:/src/rpcs3/3rdparty/curl/curl/lib/../include -IE:/build-rpcs3-clang/3rdparty/curl/curl/lib/.. -IC:/src/rpcs3/3rdparty/curl/curl/lib -IE:/build-rpcs3-clang/3rdparty/curl/curl/lib -Wextra -Wall -pedantic -Wbad-function-cast -Wconversion -Winline -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wno-long-long -Wno-multichar -Wpointer-arith -Wshadow -Wsign-compare -Wundef -Wunused -Wwrite-strings -Wcast-align -Wdeclaration-after-statement -Wempty-body -Wendif-labels -Wfloat-equal -Wignored-qualifiers -Wno-format-nonliteral -Wno-sign-conversion -Wno-system-headers -Wstrict-prototypes -Wtype-limits -Wvla -Wshift-sign-overflow -Wshorten-64-to-32 -Wdouble-promotion -Wenum-conversion -Wunused-const-variable -Wcomma -Wmissing-variable-declarations -Wassign-enum -Wextra-semi-stmt -g -fvisibility=hidden -w -municode -MD -MT 3rdparty/curl/curl/lib/CMakeFiles/libcurl_object.dir/curl_ntlm_core.c.obj -MF 3rdparty\curl\curl\lib\CMakeFiles\libcurl_object.dir\curl_ntlm_core.c.obj.d -o 3rdparty/curl/curl/lib/CMakeFiles/libcurl_object.dir/curl_ntlm_core.c.obj -c C:/src/rpcs3/3rdparty/curl/curl/lib/curl_ntlm_core.c
[build] C:/src/rpcs3/3rdparty/curl/curl/lib/curl_ntlm_core.c:70:12: fatal error: 'wolfssl/options.h' file not found
[build]    70 | #  include <wolfssl/options.h>
[build]       |            ^~~~~~~~~~~~~~~~~~~
[build] 1 error generated.

[Megamouse]

Feel free to make a win32 specific fix.
libcurl_object does not exist on other builds.